Home / 124,140.15-186,064.43-57,439.40

Finding the Fourth Proportional to 124,140.15, 186,064.43 and 57,439.40

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Solution

The fourth proportional to 124,140.15, 186,064.43 and 57,439.40 is: 86,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,140.15 : 186,064.43 = 57,439.40 : x
  2. Step 2: Convert to fraction form
    124,140.15/186,064.43 = 57,439.40/x
  3. Step 3: Cross multiply
    124,140.15x = 186,064.43 × 57,439.40
  4. Step 4: Simplify right side
    124,140.15x = 10,687,428,003.02
  5. Step 5: Solve for x
    x = 10,687,428,003.02/124,140.15
  6. Step 6: Final answer
    x = 86,091.63

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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.