Home / 156,932.34-216,564.12-85,314.18

Finding the Fourth Proportional to 156,932.34, 216,564.12 and 85,314.18

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Solution

The fourth proportional to 156,932.34, 216,564.12 and 85,314.18 is: 117,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,932.34 : 216,564.12 = 85,314.18 : x
  2. Step 2: Convert to fraction form
    156,932.34/216,564.12 = 85,314.18/x
  3. Step 3: Cross multiply
    156,932.34x = 216,564.12 × 85,314.18
  4. Step 4: Simplify right side
    156,932.34x = 18,475,990,315.22
  5. Step 5: Solve for x
    x = 18,475,990,315.22/156,932.34
  6. Step 6: Final answer
    x = 117,732.20

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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.