Home / 143,360.02-197,841.90-78,834.19

Finding the Fourth Proportional to 143,360.02, 197,841.90 and 78,834.19

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Solution

The fourth proportional to 143,360.02, 197,841.90 and 78,834.19 is: 108,793.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,360.02 : 197,841.90 = 78,834.19 : x
  2. Step 2: Convert to fraction form
    143,360.02/197,841.90 = 78,834.19/x
  3. Step 3: Cross multiply
    143,360.02x = 197,841.90 × 78,834.19
  4. Step 4: Simplify right side
    143,360.02x = 15,596,705,934.56
  5. Step 5: Solve for x
    x = 15,596,705,934.56/143,360.02
  6. Step 6: Final answer
    x = 108,793.97

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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.