Home / 120,011.74-165,593.19-72,268.18

Finding the Fourth Proportional to 120,011.74, 165,593.19 and 72,268.18

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Solution

The fourth proportional to 120,011.74, 165,593.19 and 72,268.18 is: 99,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,011.74 : 165,593.19 = 72,268.18 : x
  2. Step 2: Convert to fraction form
    120,011.74/165,593.19 = 72,268.18/x
  3. Step 3: Cross multiply
    120,011.74x = 165,593.19 × 72,268.18
  4. Step 4: Simplify right side
    120,011.74x = 11,967,118,461.69
  5. Step 5: Solve for x
    x = 11,967,118,461.69/120,011.74
  6. Step 6: Final answer
    x = 99,716.23

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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.