Home / 147,471.55-203,504.88-87,061.66

Finding the Fourth Proportional to 147,471.55, 203,504.88 and 87,061.66

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Solution

The fourth proportional to 147,471.55, 203,504.88 and 87,061.66 is: 120,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,471.55 : 203,504.88 = 87,061.66 : x
  2. Step 2: Convert to fraction form
    147,471.55/203,504.88 = 87,061.66/x
  3. Step 3: Cross multiply
    147,471.55x = 203,504.88 × 87,061.66
  4. Step 4: Simplify right side
    147,471.55x = 17,717,471,326.90
  5. Step 5: Solve for x
    x = 17,717,471,326.90/147,471.55
  6. Step 6: Final answer
    x = 120,141.62

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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.