Home / 118,764.17-178,162.65-39,900.95

Finding the Fourth Proportional to 118,764.17, 178,162.65 and 39,900.95

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Solution

The fourth proportional to 118,764.17, 178,162.65 and 39,900.95 is: 59,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,764.17 : 178,162.65 = 39,900.95 : x
  2. Step 2: Convert to fraction form
    118,764.17/178,162.65 = 39,900.95/x
  3. Step 3: Cross multiply
    118,764.17x = 178,162.65 × 39,900.95
  4. Step 4: Simplify right side
    118,764.17x = 7,108,858,989.52
  5. Step 5: Solve for x
    x = 7,108,858,989.52/118,764.17
  6. Step 6: Final answer
    x = 59,856.93

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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.