Home / 98,555.28-147,838.86-66,951.96

Finding the Fourth Proportional to 98,555.28, 147,838.86 and 66,951.96

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Solution

The fourth proportional to 98,555.28, 147,838.86 and 66,951.96 is: 100,431.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,555.28 : 147,838.86 = 66,951.96 : x
  2. Step 2: Convert to fraction form
    98,555.28/147,838.86 = 66,951.96/x
  3. Step 3: Cross multiply
    98,555.28x = 147,838.86 × 66,951.96
  4. Step 4: Simplify right side
    98,555.28x = 9,898,101,441.17
  5. Step 5: Solve for x
    x = 9,898,101,441.17/98,555.28
  6. Step 6: Final answer
    x = 100,431.98

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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.