Home / 187,007.60-280,344.54-81,743.24

Finding the Fourth Proportional to 187,007.60, 280,344.54 and 81,743.24

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Solution

The fourth proportional to 187,007.60, 280,344.54 and 81,743.24 is: 122,541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,007.60 : 280,344.54 = 81,743.24 : x
  2. Step 2: Convert to fraction form
    187,007.60/280,344.54 = 81,743.24/x
  3. Step 3: Cross multiply
    187,007.60x = 280,344.54 × 81,743.24
  4. Step 4: Simplify right side
    187,007.60x = 22,916,271,015.91
  5. Step 5: Solve for x
    x = 22,916,271,015.91/187,007.60
  6. Step 6: Final answer
    x = 122,541.92

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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.