Home / 136,124.91-187,856.94-74,873.69

Finding the Fourth Proportional to 136,124.91, 187,856.94 and 74,873.69

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Solution

The fourth proportional to 136,124.91, 187,856.94 and 74,873.69 is: 103,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,124.91 : 187,856.94 = 74,873.69 : x
  2. Step 2: Convert to fraction form
    136,124.91/187,856.94 = 74,873.69/x
  3. Step 3: Cross multiply
    136,124.91x = 187,856.94 × 74,873.69
  4. Step 4: Simplify right side
    136,124.91x = 14,065,541,769.69
  5. Step 5: Solve for x
    x = 14,065,541,769.69/136,124.91
  6. Step 6: Final answer
    x = 103,328.20

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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.