Home / 143,541.12-198,085.32-79,877.82

Finding the Fourth Proportional to 143,541.12, 198,085.32 and 79,877.82

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Solution

The fourth proportional to 143,541.12, 198,085.32 and 79,877.82 is: 110,230.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,541.12 : 198,085.32 = 79,877.82 : x
  2. Step 2: Convert to fraction form
    143,541.12/198,085.32 = 79,877.82/x
  3. Step 3: Cross multiply
    143,541.12x = 198,085.32 × 79,877.82
  4. Step 4: Simplify right side
    143,541.12x = 15,822,623,535.60
  5. Step 5: Solve for x
    x = 15,822,623,535.60/143,541.12
  6. Step 6: Final answer
    x = 110,230.60

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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.