Home / 136,056.71-187,760.50-74,805.47

Finding the Fourth Proportional to 136,056.71, 187,760.50 and 74,805.47

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Solution

The fourth proportional to 136,056.71, 187,760.50 and 74,805.47 is: 103,232.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,056.71 : 187,760.50 = 74,805.47 : x
  2. Step 2: Convert to fraction form
    136,056.71/187,760.50 = 74,805.47/x
  3. Step 3: Cross multiply
    136,056.71x = 187,760.50 × 74,805.47
  4. Step 4: Simplify right side
    136,056.71x = 14,045,513,084.37
  5. Step 5: Solve for x
    x = 14,045,513,084.37/136,056.71
  6. Step 6: Final answer
    x = 103,232.78

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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.