Home / 131,476.12-181,586.70-88,380.78

Finding the Fourth Proportional to 131,476.12, 181,586.70 and 88,380.78

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Solution

The fourth proportional to 131,476.12, 181,586.70 and 88,380.78 is: 122,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,476.12 : 181,586.70 = 88,380.78 : x
  2. Step 2: Convert to fraction form
    131,476.12/181,586.70 = 88,380.78/x
  3. Step 3: Cross multiply
    131,476.12x = 181,586.70 × 88,380.78
  4. Step 4: Simplify right side
    131,476.12x = 16,048,774,183.63
  5. Step 5: Solve for x
    x = 16,048,774,183.63/131,476.12
  6. Step 6: Final answer
    x = 122,066.08

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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.