Home / 156,747.83-216,401.67-103,188.54

Finding the Fourth Proportional to 156,747.83, 216,401.67 and 103,188.54

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Solution

The fourth proportional to 156,747.83, 216,401.67 and 103,188.54 is: 142,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,747.83 : 216,401.67 = 103,188.54 : x
  2. Step 2: Convert to fraction form
    156,747.83/216,401.67 = 103,188.54/x
  3. Step 3: Cross multiply
    156,747.83x = 216,401.67 × 103,188.54
  4. Step 4: Simplify right side
    156,747.83x = 22,330,172,921.87
  5. Step 5: Solve for x
    x = 22,330,172,921.87/156,747.83
  6. Step 6: Final answer
    x = 142,459.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.