Home / 131,238.12-196,888.46-42,491.65

Finding the Fourth Proportional to 131,238.12, 196,888.46 and 42,491.65

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Solution

The fourth proportional to 131,238.12, 196,888.46 and 42,491.65 is: 63,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,238.12 : 196,888.46 = 42,491.65 : x
  2. Step 2: Convert to fraction form
    131,238.12/196,888.46 = 42,491.65/x
  3. Step 3: Cross multiply
    131,238.12x = 196,888.46 × 42,491.65
  4. Step 4: Simplify right side
    131,238.12x = 8,366,115,531.36
  5. Step 5: Solve for x
    x = 8,366,115,531.36/131,238.12
  6. Step 6: Final answer
    x = 63,747.60

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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.