Home / 156,730.82-216,289.35-88,761.02

Finding the Fourth Proportional to 156,730.82, 216,289.35 and 88,761.02

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Solution

The fourth proportional to 156,730.82, 216,289.35 and 88,761.02 is: 122,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.82 : 216,289.35 = 88,761.02 : x
  2. Step 2: Convert to fraction form
    156,730.82/216,289.35 = 88,761.02/x
  3. Step 3: Cross multiply
    156,730.82x = 216,289.35 × 88,761.02
  4. Step 4: Simplify right side
    156,730.82x = 19,198,062,239.69
  5. Step 5: Solve for x
    x = 19,198,062,239.69/156,730.82
  6. Step 6: Final answer
    x = 122,490.67

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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.