Home / 156,959.79-235,434.47-68,213.39

Finding the Fourth Proportional to 156,959.79, 235,434.47 and 68,213.39

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Solution

The fourth proportional to 156,959.79, 235,434.47 and 68,213.39 is: 102,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959.79 : 235,434.47 = 68,213.39 : x
  2. Step 2: Convert to fraction form
    156,959.79/235,434.47 = 68,213.39/x
  3. Step 3: Cross multiply
    156,959.79x = 235,434.47 × 68,213.39
  4. Step 4: Simplify right side
    156,959.79x = 16,059,781,803.31
  5. Step 5: Solve for x
    x = 16,059,781,803.31/156,959.79
  6. Step 6: Final answer
    x = 102,317.81

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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.