Home / 156,965.74-235,132.98-72,607.48

Finding the Fourth Proportional to 156,965.74, 235,132.98 and 72,607.48

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Solution

The fourth proportional to 156,965.74, 235,132.98 and 72,607.48 is: 108,765.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.74 : 235,132.98 = 72,607.48 : x
  2. Step 2: Convert to fraction form
    156,965.74/235,132.98 = 72,607.48/x
  3. Step 3: Cross multiply
    156,965.74x = 235,132.98 × 72,607.48
  4. Step 4: Simplify right side
    156,965.74x = 17,072,413,142.69
  5. Step 5: Solve for x
    x = 17,072,413,142.69/156,965.74
  6. Step 6: Final answer
    x = 108,765.22

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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.