Home / 187,631.36-281,519.18-112,803.15

Finding the Fourth Proportional to 187,631.36, 281,519.18 and 112,803.15

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Solution

The fourth proportional to 187,631.36, 281,519.18 and 112,803.15 is: 169,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,631.36 : 281,519.18 = 112,803.15 : x
  2. Step 2: Convert to fraction form
    187,631.36/281,519.18 = 112,803.15/x
  3. Step 3: Cross multiply
    187,631.36x = 281,519.18 × 112,803.15
  4. Step 4: Simplify right side
    187,631.36x = 31,756,251,204.11
  5. Step 5: Solve for x
    x = 31,756,251,204.11/187,631.36
  6. Step 6: Final answer
    x = 169,248.10

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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.