Home / 187,423.67-281,010.40-103,223.70

Finding the Fourth Proportional to 187,423.67, 281,010.40 and 103,223.70

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Solution

The fourth proportional to 187,423.67, 281,010.40 and 103,223.70 is: 154,766.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,423.67 : 281,010.40 = 103,223.70 : x
  2. Step 2: Convert to fraction form
    187,423.67/281,010.40 = 103,223.70/x
  3. Step 3: Cross multiply
    187,423.67x = 281,010.40 × 103,223.70
  4. Step 4: Simplify right side
    187,423.67x = 29,006,932,968.42
  5. Step 5: Solve for x
    x = 29,006,932,968.42/187,423.67
  6. Step 6: Final answer
    x = 154,766.64

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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.