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Finding the Fourth Proportional to 109,425.60, 150,801.12 and 79,159.59

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Solution

The fourth proportional to 109,425.60, 150,801.12 and 79,159.59 is: 109,091.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,425.60 : 150,801.12 = 79,159.59 : x
  2. Step 2: Convert to fraction form
    109,425.60/150,801.12 = 79,159.59/x
  3. Step 3: Cross multiply
    109,425.60x = 150,801.12 × 79,159.59
  4. Step 4: Simplify right side
    109,425.60x = 11,937,354,830.74
  5. Step 5: Solve for x
    x = 11,937,354,830.74/109,425.60
  6. Step 6: Final answer
    x = 109,091.06

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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.