Home / 131,808.60-197,567.10-72,686.70

Finding the Fourth Proportional to 131,808.60, 197,567.10 and 72,686.70

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Solution

The fourth proportional to 131,808.60, 197,567.10 and 72,686.70 is: 108,949.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,808.60 : 197,567.10 = 72,686.70 : x
  2. Step 2: Convert to fraction form
    131,808.60/197,567.10 = 72,686.70/x
  3. Step 3: Cross multiply
    131,808.60x = 197,567.10 × 72,686.70
  4. Step 4: Simplify right side
    131,808.60x = 14,360,500,527.57
  5. Step 5: Solve for x
    x = 14,360,500,527.57/131,808.60
  6. Step 6: Final answer
    x = 108,949.65

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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.