Home / 118,321.05-163,304.10-69,920.92

Finding the Fourth Proportional to 118,321.05, 163,304.10 and 69,920.92

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Solution

The fourth proportional to 118,321.05, 163,304.10 and 69,920.92 is: 96,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,321.05 : 163,304.10 = 69,920.92 : x
  2. Step 2: Convert to fraction form
    118,321.05/163,304.10 = 69,920.92/x
  3. Step 3: Cross multiply
    118,321.05x = 163,304.10 × 69,920.92
  4. Step 4: Simplify right side
    118,321.05x = 11,418,373,115.90
  5. Step 5: Solve for x
    x = 11,418,373,115.90/118,321.05
  6. Step 6: Final answer
    x = 96,503.31

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1.5x scale

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.