Home / 156,543.13-216,029.94-84,923.15

Finding the Fourth Proportional to 156,543.13, 216,029.94 and 84,923.15

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Solution

The fourth proportional to 156,543.13, 216,029.94 and 84,923.15 is: 117,194.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,543.13 : 216,029.94 = 84,923.15 : x
  2. Step 2: Convert to fraction form
    156,543.13/216,029.94 = 84,923.15/x
  3. Step 3: Cross multiply
    156,543.13x = 216,029.94 × 84,923.15
  4. Step 4: Simplify right side
    156,543.13x = 18,345,942,999.11
  5. Step 5: Solve for x
    x = 18,345,942,999.11/156,543.13
  6. Step 6: Final answer
    x = 117,194.18

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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.