Home / 187,968.48-282,062.88-75,631.20

Finding the Fourth Proportional to 187,968.48, 282,062.88 and 75,631.20

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Solution

The fourth proportional to 187,968.48, 282,062.88 and 75,631.20 is: 113,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,968.48 : 282,062.88 = 75,631.20 : x
  2. Step 2: Convert to fraction form
    187,968.48/282,062.88 = 75,631.20/x
  3. Step 3: Cross multiply
    187,968.48x = 282,062.88 × 75,631.20
  4. Step 4: Simplify right side
    187,968.48x = 21,332,754,089.86
  5. Step 5: Solve for x
    x = 21,332,754,089.86/187,968.48
  6. Step 6: Final answer
    x = 113,491.12

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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.