Home / 98,575.05-147,989.69-84,624.72

Finding the Fourth Proportional to 98,575.05, 147,989.69 and 84,624.72

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Solution

The fourth proportional to 98,575.05, 147,989.69 and 84,624.72 is: 127,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.05 : 147,989.69 = 84,624.72 : x
  2. Step 2: Convert to fraction form
    98,575.05/147,989.69 = 84,624.72/x
  3. Step 3: Cross multiply
    98,575.05x = 147,989.69 × 84,624.72
  4. Step 4: Simplify right side
    98,575.05x = 12,523,585,973.36
  5. Step 5: Solve for x
    x = 12,523,585,973.36/98,575.05
  6. Step 6: Final answer
    x = 127,046.21

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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.