Home / 120,531.04-166,338.48-75,235.84

Finding the Fourth Proportional to 120,531.04, 166,338.48 and 75,235.84

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Solution

The fourth proportional to 120,531.04, 166,338.48 and 75,235.84 is: 103,828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,531.04 : 166,338.48 = 75,235.84 : x
  2. Step 2: Convert to fraction form
    120,531.04/166,338.48 = 75,235.84/x
  3. Step 3: Cross multiply
    120,531.04x = 166,338.48 × 75,235.84
  4. Step 4: Simplify right side
    120,531.04x = 12,514,615,267.12
  5. Step 5: Solve for x
    x = 12,514,615,267.12/120,531.04
  6. Step 6: Final answer
    x = 103,828.98

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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.