Home / 187,359.84-281,150.40-69,113.76

Finding the Fourth Proportional to 187,359.84, 281,150.40 and 69,113.76

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Solution

The fourth proportional to 187,359.84, 281,150.40 and 69,113.76 is: 103,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,359.84 : 281,150.40 = 69,113.76 : x
  2. Step 2: Convert to fraction form
    187,359.84/281,150.40 = 69,113.76/x
  3. Step 3: Cross multiply
    187,359.84x = 281,150.40 × 69,113.76
  4. Step 4: Simplify right side
    187,359.84x = 19,431,361,269.50
  5. Step 5: Solve for x
    x = 19,431,361,269.50/187,359.84
  6. Step 6: Final answer
    x = 103,711.45

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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.