Home / 187,455.28-280,829.76-92,574.40

Finding the Fourth Proportional to 187,455.28, 280,829.76 and 92,574.40

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Solution

The fourth proportional to 187,455.28, 280,829.76 and 92,574.40 is: 138,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,455.28 : 280,829.76 = 92,574.40 : x
  2. Step 2: Convert to fraction form
    187,455.28/280,829.76 = 92,574.40/x
  3. Step 3: Cross multiply
    187,455.28x = 280,829.76 × 92,574.40
  4. Step 4: Simplify right side
    187,455.28x = 25,997,646,534.14
  5. Step 5: Solve for x
    x = 25,997,646,534.14/187,455.28
  6. Step 6: Final answer
    x = 138,687.19

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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.