Home / 156,631.94-216,146.58-85,010.52

Finding the Fourth Proportional to 156,631.94, 216,146.58 and 85,010.52

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Solution

The fourth proportional to 156,631.94, 216,146.58 and 85,010.52 is: 117,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,631.94 : 216,146.58 = 85,010.52 : x
  2. Step 2: Convert to fraction form
    156,631.94/216,146.58 = 85,010.52/x
  3. Step 3: Cross multiply
    156,631.94x = 216,146.58 × 85,010.52
  4. Step 4: Simplify right side
    156,631.94x = 18,374,733,162.02
  5. Step 5: Solve for x
    x = 18,374,733,162.02/156,631.94
  6. Step 6: Final answer
    x = 117,311.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.