Home / 125,220.15-172,802.82-68,631.39

Finding the Fourth Proportional to 125,220.15, 172,802.82 and 68,631.39

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Solution

The fourth proportional to 125,220.15, 172,802.82 and 68,631.39 is: 94,710.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,220.15 : 172,802.82 = 68,631.39 : x
  2. Step 2: Convert to fraction form
    125,220.15/172,802.82 = 68,631.39/x
  3. Step 3: Cross multiply
    125,220.15x = 172,802.82 × 68,631.39
  4. Step 4: Simplify right side
    125,220.15x = 11,859,697,732.52
  5. Step 5: Solve for x
    x = 11,859,697,732.52/125,220.15
  6. Step 6: Final answer
    x = 94,710.78

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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.