Home / 136,127.84-187,860.96-74,876.61

Finding the Fourth Proportional to 136,127.84, 187,860.96 and 74,876.61

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Solution

The fourth proportional to 136,127.84, 187,860.96 and 74,876.61 is: 103,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,127.84 : 187,860.96 = 74,876.61 : x
  2. Step 2: Convert to fraction form
    136,127.84/187,860.96 = 74,876.61/x
  3. Step 3: Cross multiply
    136,127.84x = 187,860.96 × 74,876.61
  4. Step 4: Simplify right side
    136,127.84x = 14,066,391,836.15
  5. Step 5: Solve for x
    x = 14,066,391,836.15/136,127.84
  6. Step 6: Final answer
    x = 103,332.22

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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.