Home / 120,268.76-165,973.59-77,901.03

Finding the Fourth Proportional to 120,268.76, 165,973.59 and 77,901.03

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Solution

The fourth proportional to 120,268.76, 165,973.59 and 77,901.03 is: 107,505.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,268.76 : 165,973.59 = 77,901.03 : x
  2. Step 2: Convert to fraction form
    120,268.76/165,973.59 = 77,901.03/x
  3. Step 3: Cross multiply
    120,268.76x = 165,973.59 × 77,901.03
  4. Step 4: Simplify right side
    120,268.76x = 12,929,513,613.80
  5. Step 5: Solve for x
    x = 12,929,513,613.80/120,268.76
  6. Step 6: Final answer
    x = 107,505.18

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1.5x scale

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.