Home / 139,962.98-209,985.52-45,191.10

Finding the Fourth Proportional to 139,962.98, 209,985.52 and 45,191.10

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Solution

The fourth proportional to 139,962.98, 209,985.52 and 45,191.10 is: 67,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,962.98 : 209,985.52 = 45,191.10 : x
  2. Step 2: Convert to fraction form
    139,962.98/209,985.52 = 45,191.10/x
  3. Step 3: Cross multiply
    139,962.98x = 209,985.52 × 45,191.10
  4. Step 4: Simplify right side
    139,962.98x = 9,489,476,632.87
  5. Step 5: Solve for x
    x = 9,489,476,632.87/139,962.98
  6. Step 6: Final answer
    x = 67,799.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.