Home / 118,682.13-163,781.55-64,967.18

Finding the Fourth Proportional to 118,682.13, 163,781.55 and 64,967.18

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Solution

The fourth proportional to 118,682.13, 163,781.55 and 64,967.18 is: 89,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,682.13 : 163,781.55 = 64,967.18 : x
  2. Step 2: Convert to fraction form
    118,682.13/163,781.55 = 64,967.18/x
  3. Step 3: Cross multiply
    118,682.13x = 163,781.55 × 64,967.18
  4. Step 4: Simplify right side
    118,682.13x = 10,640,425,114.69
  5. Step 5: Solve for x
    x = 10,640,425,114.69/118,682.13
  6. Step 6: Final answer
    x = 89,654.82

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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.