Home / 156,471.40-234,708.06-38,143.72

Finding the Fourth Proportional to 156,471.40, 234,708.06 and 38,143.72

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Solution

The fourth proportional to 156,471.40, 234,708.06 and 38,143.72 is: 57,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,471.40 : 234,708.06 = 38,143.72 : x
  2. Step 2: Convert to fraction form
    156,471.40/234,708.06 = 38,143.72/x
  3. Step 3: Cross multiply
    156,471.40x = 234,708.06 × 38,143.72
  4. Step 4: Simplify right side
    156,471.40x = 8,952,638,522.38
  5. Step 5: Solve for x
    x = 8,952,638,522.38/156,471.40
  6. Step 6: Final answer
    x = 57,215.81

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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.