Home / 157,439.64-217,258.51-89,447.18

Finding the Fourth Proportional to 157,439.64, 217,258.51 and 89,447.18

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Solution

The fourth proportional to 157,439.64, 217,258.51 and 89,447.18 is: 123,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,439.64 : 217,258.51 = 89,447.18 : x
  2. Step 2: Convert to fraction form
    157,439.64/217,258.51 = 89,447.18/x
  3. Step 3: Cross multiply
    157,439.64x = 217,258.51 × 89,447.18
  4. Step 4: Simplify right side
    157,439.64x = 19,433,160,555.31
  5. Step 5: Solve for x
    x = 19,433,160,555.31/157,439.64
  6. Step 6: Final answer
    x = 123,432.45

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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.