Home / 157,318.64-217,081.02-89,335.10

Finding the Fourth Proportional to 157,318.64, 217,081.02 and 89,335.10

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Solution

The fourth proportional to 157,318.64, 217,081.02 and 89,335.10 is: 123,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,318.64 : 217,081.02 = 89,335.10 : x
  2. Step 2: Convert to fraction form
    157,318.64/217,081.02 = 89,335.10/x
  3. Step 3: Cross multiply
    157,318.64x = 217,081.02 × 89,335.10
  4. Step 4: Simplify right side
    157,318.64x = 19,392,954,629.80
  5. Step 5: Solve for x
    x = 19,392,954,629.80/157,318.64
  6. Step 6: Final answer
    x = 123,271.82

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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.