Home / 123,870.24-185,805.36-53,748

Finding the Fourth Proportional to 123,870.24, 185,805.36 and 53,748

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Solution

The fourth proportional to 123,870.24, 185,805.36 and 53,748 is: 80,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,870.24 : 185,805.36 = 53,748 : x
  2. Step 2: Convert to fraction form
    123,870.24/185,805.36 = 53,748/x
  3. Step 3: Cross multiply
    123,870.24x = 185,805.36 × 53,748
  4. Step 4: Simplify right side
    123,870.24x = 9,986,666,489.28
  5. Step 5: Solve for x
    x = 9,986,666,489.28/123,870.24
  6. Step 6: Final answer
    x = 80,622.00

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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.