Home / 187,689.42-281,534.09-47,448.05

Finding the Fourth Proportional to 187,689.42, 281,534.09 and 47,448.05

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Solution

The fourth proportional to 187,689.42, 281,534.09 and 47,448.05 is: 71,172.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,689.42 : 281,534.09 = 47,448.05 : x
  2. Step 2: Convert to fraction form
    187,689.42/281,534.09 = 47,448.05/x
  3. Step 3: Cross multiply
    187,689.42x = 281,534.09 × 47,448.05
  4. Step 4: Simplify right side
    187,689.42x = 13,358,241,934.11
  5. Step 5: Solve for x
    x = 13,358,241,934.11/187,689.42
  6. Step 6: Final answer
    x = 71,172.06

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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.