Home / 134,281.20-185,293.53-77,682

Finding the Fourth Proportional to 134,281.20, 185,293.53 and 77,682

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Solution

The fourth proportional to 134,281.20, 185,293.53 and 77,682 is: 107,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,281.20 : 185,293.53 = 77,682 : x
  2. Step 2: Convert to fraction form
    134,281.20/185,293.53 = 77,682/x
  3. Step 3: Cross multiply
    134,281.20x = 185,293.53 × 77,682
  4. Step 4: Simplify right side
    134,281.20x = 14,393,971,997.46
  5. Step 5: Solve for x
    x = 14,393,971,997.46/134,281.20
  6. Step 6: Final answer
    x = 107,192.76

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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.