Home / 118,387.50-163,372.70-64,671.14

Finding the Fourth Proportional to 118,387.50, 163,372.70 and 64,671.14

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Solution

The fourth proportional to 118,387.50, 163,372.70 and 64,671.14 is: 89,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,387.50 : 163,372.70 = 64,671.14 : x
  2. Step 2: Convert to fraction form
    118,387.50/163,372.70 = 64,671.14/x
  3. Step 3: Cross multiply
    118,387.50x = 163,372.70 × 64,671.14
  4. Step 4: Simplify right side
    118,387.50x = 10,565,498,753.88
  5. Step 5: Solve for x
    x = 10,565,498,753.88/118,387.50
  6. Step 6: Final answer
    x = 89,245.05

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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.