Home / 147,726.14-203,861.90-87,318.57

Finding the Fourth Proportional to 147,726.14, 203,861.90 and 87,318.57

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Solution

The fourth proportional to 147,726.14, 203,861.90 and 87,318.57 is: 120,499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,726.14 : 203,861.90 = 87,318.57 : x
  2. Step 2: Convert to fraction form
    147,726.14/203,861.90 = 87,318.57/x
  3. Step 3: Cross multiply
    147,726.14x = 203,861.90 × 87,318.57
  4. Step 4: Simplify right side
    147,726.14x = 17,800,929,585.48
  5. Step 5: Solve for x
    x = 17,800,929,585.48/147,726.14
  6. Step 6: Final answer
    x = 120,499.52

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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.