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Finding the Fourth Proportional to 125,127.84, 172,678.32 and 68,544.48

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Solution

The fourth proportional to 125,127.84, 172,678.32 and 68,544.48 is: 94,592.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,127.84 : 172,678.32 = 68,544.48 : x
  2. Step 2: Convert to fraction form
    125,127.84/172,678.32 = 68,544.48/x
  3. Step 3: Cross multiply
    125,127.84x = 172,678.32 × 68,544.48
  4. Step 4: Simplify right side
    125,127.84x = 11,836,145,651.67
  5. Step 5: Solve for x
    x = 11,836,145,651.67/125,127.84
  6. Step 6: Final answer
    x = 94,592.42

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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.