Home / 123,712.40-185,568.60-57,132.84

Finding the Fourth Proportional to 123,712.40, 185,568.60 and 57,132.84

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Solution

The fourth proportional to 123,712.40, 185,568.60 and 57,132.84 is: 85,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,712.40 : 185,568.60 = 57,132.84 : x
  2. Step 2: Convert to fraction form
    123,712.40/185,568.60 = 57,132.84/x
  3. Step 3: Cross multiply
    123,712.40x = 185,568.60 × 57,132.84
  4. Step 4: Simplify right side
    123,712.40x = 10,602,061,132.82
  5. Step 5: Solve for x
    x = 10,602,061,132.82/123,712.40
  6. Step 6: Final answer
    x = 85,699.26

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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.