Home / 134,306.64-185,298.84-77,677.92

Finding the Fourth Proportional to 134,306.64, 185,298.84 and 77,677.92

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Solution

The fourth proportional to 134,306.64, 185,298.84 and 77,677.92 is: 107,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,306.64 : 185,298.84 = 77,677.92 : x
  2. Step 2: Convert to fraction form
    134,306.64/185,298.84 = 77,677.92/x
  3. Step 3: Cross multiply
    134,306.64x = 185,298.84 × 77,677.92
  4. Step 4: Simplify right side
    134,306.64x = 14,393,628,469.61
  5. Step 5: Solve for x
    x = 14,393,628,469.61/134,306.64
  6. Step 6: Final answer
    x = 107,169.89

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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.