Home / 102,784.71-141,882.12-66,983.52

Finding the Fourth Proportional to 102,784.71, 141,882.12 and 66,983.52

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Solution

The fourth proportional to 102,784.71, 141,882.12 and 66,983.52 is: 92,462.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,784.71 : 141,882.12 = 66,983.52 : x
  2. Step 2: Convert to fraction form
    102,784.71/141,882.12 = 66,983.52/x
  3. Step 3: Cross multiply
    102,784.71x = 141,882.12 × 66,983.52
  4. Step 4: Simplify right side
    102,784.71x = 9,503,763,822.66
  5. Step 5: Solve for x
    x = 9,503,763,822.66/102,784.71
  6. Step 6: Final answer
    x = 92,462.82

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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.