Home / 140,700.24-194,165.64-77,036.88

Finding the Fourth Proportional to 140,700.24, 194,165.64 and 77,036.88

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Solution

The fourth proportional to 140,700.24, 194,165.64 and 77,036.88 is: 106,310.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,700.24 : 194,165.64 = 77,036.88 : x
  2. Step 2: Convert to fraction form
    140,700.24/194,165.64 = 77,036.88/x
  3. Step 3: Cross multiply
    140,700.24x = 194,165.64 × 77,036.88
  4. Step 4: Simplify right side
    140,700.24x = 14,957,915,108.80
  5. Step 5: Solve for x
    x = 14,957,915,108.80/140,700.24
  6. Step 6: Final answer
    x = 106,310.52

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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.