Home / 137,566.16-189,851.04-76,332.38

Finding the Fourth Proportional to 137,566.16, 189,851.04 and 76,332.38

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Solution

The fourth proportional to 137,566.16, 189,851.04 and 76,332.38 is: 105,344.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,566.16 : 189,851.04 = 76,332.38 : x
  2. Step 2: Convert to fraction form
    137,566.16/189,851.04 = 76,332.38/x
  3. Step 3: Cross multiply
    137,566.16x = 189,851.04 × 76,332.38
  4. Step 4: Simplify right side
    137,566.16x = 14,491,781,728.68
  5. Step 5: Solve for x
    x = 14,491,781,728.68/137,566.16
  6. Step 6: Final answer
    x = 105,344.09

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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.