Home / 131,520.15-197,298.45-47,259.90

Finding the Fourth Proportional to 131,520.15, 197,298.45 and 47,259.90

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Solution

The fourth proportional to 131,520.15, 197,298.45 and 47,259.90 is: 70,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,520.15 : 197,298.45 = 47,259.90 : x
  2. Step 2: Convert to fraction form
    131,520.15/197,298.45 = 47,259.90/x
  3. Step 3: Cross multiply
    131,520.15x = 197,298.45 × 47,259.90
  4. Step 4: Simplify right side
    131,520.15x = 9,324,305,017.16
  5. Step 5: Solve for x
    x = 9,324,305,017.16/131,520.15
  6. Step 6: Final answer
    x = 70,896.40

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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.