Home / 170,742.90-256,114.35-72,234.10

Finding the Fourth Proportional to 170,742.90, 256,114.35 and 72,234.10

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Solution

The fourth proportional to 170,742.90, 256,114.35 and 72,234.10 is: 108,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,742.90 : 256,114.35 = 72,234.10 : x
  2. Step 2: Convert to fraction form
    170,742.90/256,114.35 = 72,234.10/x
  3. Step 3: Cross multiply
    170,742.90x = 256,114.35 × 72,234.10
  4. Step 4: Simplify right side
    170,742.90x = 18,500,189,569.34
  5. Step 5: Solve for x
    x = 18,500,189,569.34/170,742.90
  6. Step 6: Final answer
    x = 108,351.15

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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.