Home / 156,971.55-235,452.05-68,225.07

Finding the Fourth Proportional to 156,971.55, 235,452.05 and 68,225.07

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Solution

The fourth proportional to 156,971.55, 235,452.05 and 68,225.07 is: 102,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.55 : 235,452.05 = 68,225.07 : x
  2. Step 2: Convert to fraction form
    156,971.55/235,452.05 = 68,225.07/x
  3. Step 3: Cross multiply
    156,971.55x = 235,452.05 × 68,225.07
  4. Step 4: Simplify right side
    156,971.55x = 16,063,732,592.89
  5. Step 5: Solve for x
    x = 16,063,732,592.89/156,971.55
  6. Step 6: Final answer
    x = 102,335.31

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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.