Home / 120,275.28-165,977.51-66,557.16

Finding the Fourth Proportional to 120,275.28, 165,977.51 and 66,557.16

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Solution

The fourth proportional to 120,275.28, 165,977.51 and 66,557.16 is: 91,847.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,275.28 : 165,977.51 = 66,557.16 : x
  2. Step 2: Convert to fraction form
    120,275.28/165,977.51 = 66,557.16/x
  3. Step 3: Cross multiply
    120,275.28x = 165,977.51 × 66,557.16
  4. Step 4: Simplify right side
    120,275.28x = 11,046,991,356.69
  5. Step 5: Solve for x
    x = 11,046,991,356.69/120,275.28
  6. Step 6: Final answer
    x = 91,847.56

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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.