Home / 156,699.15-235,086.53-51,512.55

Finding the Fourth Proportional to 156,699.15, 235,086.53 and 51,512.55

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Solution

The fourth proportional to 156,699.15, 235,086.53 and 51,512.55 is: 77,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,699.15 : 235,086.53 = 51,512.55 : x
  2. Step 2: Convert to fraction form
    156,699.15/235,086.53 = 51,512.55/x
  3. Step 3: Cross multiply
    156,699.15x = 235,086.53 × 51,512.55
  4. Step 4: Simplify right side
    156,699.15x = 12,109,906,373.39
  5. Step 5: Solve for x
    x = 12,109,906,373.39/156,699.15
  6. Step 6: Final answer
    x = 77,281.25

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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.