Home / 157,520.65-236,219.55-68,713.60

Finding the Fourth Proportional to 157,520.65, 236,219.55 and 68,713.60

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Solution

The fourth proportional to 157,520.65, 236,219.55 and 68,713.60 is: 103,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,520.65 : 236,219.55 = 68,713.60 : x
  2. Step 2: Convert to fraction form
    157,520.65/236,219.55 = 68,713.60/x
  3. Step 3: Cross multiply
    157,520.65x = 236,219.55 × 68,713.60
  4. Step 4: Simplify right side
    157,520.65x = 16,231,495,670.88
  5. Step 5: Solve for x
    x = 16,231,495,670.88/157,520.65
  6. Step 6: Final answer
    x = 103,043.61

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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.