Home / 104,489.90-156,802.05-57,776.30

Finding the Fourth Proportional to 104,489.90, 156,802.05 and 57,776.30

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Solution

The fourth proportional to 104,489.90, 156,802.05 and 57,776.30 is: 86,701.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,489.90 : 156,802.05 = 57,776.30 : x
  2. Step 2: Convert to fraction form
    104,489.90/156,802.05 = 57,776.30/x
  3. Step 3: Cross multiply
    104,489.90x = 156,802.05 × 57,776.30
  4. Step 4: Simplify right side
    104,489.90x = 9,059,442,281.42
  5. Step 5: Solve for x
    x = 9,059,442,281.42/104,489.90
  6. Step 6: Final answer
    x = 86,701.61

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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.