Home / 157,422.28-217,242.84-89,439.38

Finding the Fourth Proportional to 157,422.28, 217,242.84 and 89,439.38

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Solution

The fourth proportional to 157,422.28, 217,242.84 and 89,439.38 is: 123,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,422.28 : 217,242.84 = 89,439.38 : x
  2. Step 2: Convert to fraction form
    157,422.28/217,242.84 = 89,439.38/x
  3. Step 3: Cross multiply
    157,422.28x = 217,242.84 × 89,439.38
  4. Step 4: Simplify right side
    157,422.28x = 19,430,064,919.04
  5. Step 5: Solve for x
    x = 19,430,064,919.04/157,422.28
  6. Step 6: Final answer
    x = 123,426.40

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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.