Home / 136,028.52-187,714.86-74,774.92

Finding the Fourth Proportional to 136,028.52, 187,714.86 and 74,774.92

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Solution

The fourth proportional to 136,028.52, 187,714.86 and 74,774.92 is: 103,186.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,028.52 : 187,714.86 = 74,774.92 : x
  2. Step 2: Convert to fraction form
    136,028.52/187,714.86 = 74,774.92/x
  3. Step 3: Cross multiply
    136,028.52x = 187,714.86 × 74,774.92
  4. Step 4: Simplify right side
    136,028.52x = 14,036,363,639.31
  5. Step 5: Solve for x
    x = 14,036,363,639.31/136,028.52
  6. Step 6: Final answer
    x = 103,186.92

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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.