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Finding the Fourth Proportional to 124,927.39, 172,400.03 and 68,338.77

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Solution

The fourth proportional to 124,927.39, 172,400.03 and 68,338.77 is: 94,307.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,927.39 : 172,400.03 = 68,338.77 : x
  2. Step 2: Convert to fraction form
    124,927.39/172,400.03 = 68,338.77/x
  3. Step 3: Cross multiply
    124,927.39x = 172,400.03 × 68,338.77
  4. Step 4: Simplify right side
    124,927.39x = 11,781,605,998.16
  5. Step 5: Solve for x
    x = 11,781,605,998.16/124,927.39
  6. Step 6: Final answer
    x = 94,307.63

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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.