Home / 120,372,170.04-166,164,442.07-81,266,913.90

Finding the Fourth Proportional to 120,372,170.04, 166,164,442.07 and 81,266,913.90

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Solution

The fourth proportional to 120,372,170.04, 166,164,442.07 and 81,266,913.90 is: 112,182,669.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372,170.04 : 166,164,442.07 = 81,266,913.90 : x
  2. Step 2: Convert to fraction form
    120,372,170.04/166,164,442.07 = 81,266,913.90/x
  3. Step 3: Cross multiply
    120,372,170.04x = 166,164,442.07 × 81,266,913.90
  4. Step 4: Simplify right side
    120,372,170.04x = 13,503,671,406,537,894
  5. Step 5: Solve for x
    x = 13,503,671,406,537,894/120,372,170.04
  6. Step 6: Final answer
    x = 112,182,669.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.