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Finding the Fourth Proportional to 125,127.68, 172,675.34 and 67,765.68

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Solution

The fourth proportional to 125,127.68, 172,675.34 and 67,765.68 is: 93,516.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,127.68 : 172,675.34 = 67,765.68 : x
  2. Step 2: Convert to fraction form
    125,127.68/172,675.34 = 67,765.68/x
  3. Step 3: Cross multiply
    125,127.68x = 172,675.34 × 67,765.68
  4. Step 4: Simplify right side
    125,127.68x = 11,701,462,425.86
  5. Step 5: Solve for x
    x = 11,701,462,425.86/125,127.68
  6. Step 6: Final answer
    x = 93,516.18

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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.