Home / 131,113.60-196,540.80-52,122.40

Finding the Fourth Proportional to 131,113.60, 196,540.80 and 52,122.40

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Solution

The fourth proportional to 131,113.60, 196,540.80 and 52,122.40 is: 78,132.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,113.60 : 196,540.80 = 52,122.40 : x
  2. Step 2: Convert to fraction form
    131,113.60/196,540.80 = 52,122.40/x
  3. Step 3: Cross multiply
    131,113.60x = 196,540.80 × 52,122.40
  4. Step 4: Simplify right side
    131,113.60x = 10,244,178,193.92
  5. Step 5: Solve for x
    x = 10,244,178,193.92/131,113.60
  6. Step 6: Final answer
    x = 78,132.08

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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.