Home / 136,069.86-187,778.64-74,818.62

Finding the Fourth Proportional to 136,069.86, 187,778.64 and 74,818.62

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Solution

The fourth proportional to 136,069.86, 187,778.64 and 74,818.62 is: 103,250.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,069.86 : 187,778.64 = 74,818.62 : x
  2. Step 2: Convert to fraction form
    136,069.86/187,778.64 = 74,818.62/x
  3. Step 3: Cross multiply
    136,069.86x = 187,778.64 × 74,818.62
  4. Step 4: Simplify right side
    136,069.86x = 14,049,338,710.28
  5. Step 5: Solve for x
    x = 14,049,338,710.28/136,069.86
  6. Step 6: Final answer
    x = 103,250.92

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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.