Home / 131,215.30-196,842.15-42,453.70

Finding the Fourth Proportional to 131,215.30, 196,842.15 and 42,453.70

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Solution

The fourth proportional to 131,215.30, 196,842.15 and 42,453.70 is: 63,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,215.30 : 196,842.15 = 42,453.70 : x
  2. Step 2: Convert to fraction form
    131,215.30/196,842.15 = 42,453.70/x
  3. Step 3: Cross multiply
    131,215.30x = 196,842.15 × 42,453.70
  4. Step 4: Simplify right side
    131,215.30x = 8,356,677,583.46
  5. Step 5: Solve for x
    x = 8,356,677,583.46/131,215.30
  6. Step 6: Final answer
    x = 63,686.76

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1.5x scale

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.