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Finding the Fourth Proportional to 125,108.69, 172,650.35 and 67,748.69

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Solution

The fourth proportional to 125,108.69, 172,650.35 and 67,748.69 is: 93,493.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,108.69 : 172,650.35 = 67,748.69 : x
  2. Step 2: Convert to fraction form
    125,108.69/172,650.35 = 67,748.69/x
  3. Step 3: Cross multiply
    125,108.69x = 172,650.35 × 67,748.69
  4. Step 4: Simplify right side
    125,108.69x = 11,696,834,701.80
  5. Step 5: Solve for x
    x = 11,696,834,701.80/125,108.69
  6. Step 6: Final answer
    x = 93,493.38

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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.