Home / 131,567.10-197,204.85-72,445.20

Finding the Fourth Proportional to 131,567.10, 197,204.85 and 72,445.20

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Solution

The fourth proportional to 131,567.10, 197,204.85 and 72,445.20 is: 108,587.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,567.10 : 197,204.85 = 72,445.20 : x
  2. Step 2: Convert to fraction form
    131,567.10/197,204.85 = 72,445.20/x
  3. Step 3: Cross multiply
    131,567.10x = 197,204.85 × 72,445.20
  4. Step 4: Simplify right side
    131,567.10x = 14,286,544,799.22
  5. Step 5: Solve for x
    x = 14,286,544,799.22/131,567.10
  6. Step 6: Final answer
    x = 108,587.52

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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.