Home / 124,671.28-187,099.80-91,477.12

Finding the Fourth Proportional to 124,671.28, 187,099.80 and 91,477.12

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Solution

The fourth proportional to 124,671.28, 187,099.80 and 91,477.12 is: 137,283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,671.28 : 187,099.80 = 91,477.12 : x
  2. Step 2: Convert to fraction form
    124,671.28/187,099.80 = 91,477.12/x
  3. Step 3: Cross multiply
    124,671.28x = 187,099.80 × 91,477.12
  4. Step 4: Simplify right side
    124,671.28x = 17,115,350,856.58
  5. Step 5: Solve for x
    x = 17,115,350,856.58/124,671.28
  6. Step 6: Final answer
    x = 137,283.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.