Home / 131,237.12-196,886.96-42,490.65

Finding the Fourth Proportional to 131,237.12, 196,886.96 and 42,490.65

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Solution

The fourth proportional to 131,237.12, 196,886.96 and 42,490.65 is: 63,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,237.12 : 196,886.96 = 42,490.65 : x
  2. Step 2: Convert to fraction form
    131,237.12/196,886.96 = 42,490.65/x
  3. Step 3: Cross multiply
    131,237.12x = 196,886.96 × 42,490.65
  4. Step 4: Simplify right side
    131,237.12x = 8,365,854,115.48
  5. Step 5: Solve for x
    x = 8,365,854,115.48/131,237.12
  6. Step 6: Final answer
    x = 63,746.10

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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.