Home / 131,288.32-181,176.96-71,672.32

Finding the Fourth Proportional to 131,288.32, 181,176.96 and 71,672.32

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Solution

The fourth proportional to 131,288.32, 181,176.96 and 71,672.32 is: 98,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,288.32 : 181,176.96 = 71,672.32 : x
  2. Step 2: Convert to fraction form
    131,288.32/181,176.96 = 71,672.32/x
  3. Step 3: Cross multiply
    131,288.32x = 181,176.96 × 71,672.32
  4. Step 4: Simplify right side
    131,288.32x = 12,985,373,053.75
  5. Step 5: Solve for x
    x = 12,985,373,053.75/131,288.32
  6. Step 6: Final answer
    x = 98,907.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.