Home / 137,897.30-206,904.58-77,934.02

Finding the Fourth Proportional to 137,897.30, 206,904.58 and 77,934.02

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Solution

The fourth proportional to 137,897.30, 206,904.58 and 77,934.02 is: 116,934.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,897.30 : 206,904.58 = 77,934.02 : x
  2. Step 2: Convert to fraction form
    137,897.30/206,904.58 = 77,934.02/x
  3. Step 3: Cross multiply
    137,897.30x = 206,904.58 × 77,934.02
  4. Step 4: Simplify right side
    137,897.30x = 16,124,904,446.45
  5. Step 5: Solve for x
    x = 16,124,904,446.45/137,897.30
  6. Step 6: Final answer
    x = 116,934.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.