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Finding the Fourth Proportional to 127,149.98, 175,066.89 and 107,988.62

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Solution

The fourth proportional to 127,149.98, 175,066.89 and 107,988.62 is: 148,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,149.98 : 175,066.89 = 107,988.62 : x
  2. Step 2: Convert to fraction form
    127,149.98/175,066.89 = 107,988.62/x
  3. Step 3: Cross multiply
    127,149.98x = 175,066.89 × 107,988.62
  4. Step 4: Simplify right side
    127,149.98x = 18,905,231,858.79
  5. Step 5: Solve for x
    x = 18,905,231,858.79/127,149.98
  6. Step 6: Final answer
    x = 148,684.51

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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.