Home / 156,876.80-235,264.64-51,670.72

Finding the Fourth Proportional to 156,876.80, 235,264.64 and 51,670.72

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Solution

The fourth proportional to 156,876.80, 235,264.64 and 51,670.72 is: 77,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,876.80 : 235,264.64 = 51,670.72 : x
  2. Step 2: Convert to fraction form
    156,876.80/235,264.64 = 51,670.72/x
  3. Step 3: Cross multiply
    156,876.80x = 235,264.64 × 51,670.72
  4. Step 4: Simplify right side
    156,876.80x = 12,156,293,339.34
  5. Step 5: Solve for x
    x = 12,156,293,339.34/156,876.80
  6. Step 6: Final answer
    x = 77,489.43

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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.