Home / 83,437.28-115,196.64-74,468.96

Finding the Fourth Proportional to 83,437.28, 115,196.64 and 74,468.96

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Solution

The fourth proportional to 83,437.28, 115,196.64 and 74,468.96 is: 102,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,437.28 : 115,196.64 = 74,468.96 : x
  2. Step 2: Convert to fraction form
    83,437.28/115,196.64 = 74,468.96/x
  3. Step 3: Cross multiply
    83,437.28x = 115,196.64 × 74,468.96
  4. Step 4: Simplify right side
    83,437.28x = 8,578,573,976.29
  5. Step 5: Solve for x
    x = 8,578,573,976.29/83,437.28
  6. Step 6: Final answer
    x = 102,814.64

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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.