Home / 187,957.64-281,384.04-121,200.68

Finding the Fourth Proportional to 187,957.64, 281,384.04 and 121,200.68

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Solution

The fourth proportional to 187,957.64, 281,384.04 and 121,200.68 is: 181,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,957.64 : 281,384.04 = 121,200.68 : x
  2. Step 2: Convert to fraction form
    187,957.64/281,384.04 = 121,200.68/x
  3. Step 3: Cross multiply
    187,957.64x = 281,384.04 × 121,200.68
  4. Step 4: Simplify right side
    187,957.64x = 34,103,936,989.15
  5. Step 5: Solve for x
    x = 34,103,936,989.15/187,957.64
  6. Step 6: Final answer
    x = 181,444.80

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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.