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Finding the Fourth Proportional to 125,006.85, 172,509.91 and 67,646.17

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Solution

The fourth proportional to 125,006.85, 172,509.91 and 67,646.17 is: 93,351.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,006.85 : 172,509.91 = 67,646.17 : x
  2. Step 2: Convert to fraction form
    125,006.85/172,509.91 = 67,646.17/x
  3. Step 3: Cross multiply
    125,006.85x = 172,509.91 × 67,646.17
  4. Step 4: Simplify right side
    125,006.85x = 11,669,634,175.84
  5. Step 5: Solve for x
    x = 11,669,634,175.84/125,006.85
  6. Step 6: Final answer
    x = 93,351.96

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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.