Home / 136,125.91-187,858.32-74,874.69

Finding the Fourth Proportional to 136,125.91, 187,858.32 and 74,874.69

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Solution

The fourth proportional to 136,125.91, 187,858.32 and 74,874.69 is: 103,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,125.91 : 187,858.32 = 74,874.69 : x
  2. Step 2: Convert to fraction form
    136,125.91/187,858.32 = 74,874.69/x
  3. Step 3: Cross multiply
    136,125.91x = 187,858.32 × 74,874.69
  4. Step 4: Simplify right side
    136,125.91x = 14,065,833,473.92
  5. Step 5: Solve for x
    x = 14,065,833,473.92/136,125.91
  6. Step 6: Final answer
    x = 103,329.58

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1.5x scale

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.