Home / 131,440.80-197,112.60-42,697.20

Finding the Fourth Proportional to 131,440.80, 197,112.60 and 42,697.20

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Solution

The fourth proportional to 131,440.80, 197,112.60 and 42,697.20 is: 64,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,440.80 : 197,112.60 = 42,697.20 : x
  2. Step 2: Convert to fraction form
    131,440.80/197,112.60 = 42,697.20/x
  3. Step 3: Cross multiply
    131,440.80x = 197,112.60 × 42,697.20
  4. Step 4: Simplify right side
    131,440.80x = 8,416,156,104.72
  5. Step 5: Solve for x
    x = 8,416,156,104.72/131,440.80
  6. Step 6: Final answer
    x = 64,030.01

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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.