Home / 157,931.06-217,955.39-89,037.52

Finding the Fourth Proportional to 157,931.06, 217,955.39 and 89,037.52

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Solution

The fourth proportional to 157,931.06, 217,955.39 and 89,037.52 is: 122,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,931.06 : 217,955.39 = 89,037.52 : x
  2. Step 2: Convert to fraction form
    157,931.06/217,955.39 = 89,037.52/x
  3. Step 3: Cross multiply
    157,931.06x = 217,955.39 × 89,037.52
  4. Step 4: Simplify right side
    157,931.06x = 19,406,206,406.16
  5. Step 5: Solve for x
    x = 19,406,206,406.16/157,931.06
  6. Step 6: Final answer
    x = 122,877.71

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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.