Home / 143,916.04-198,599.48-79,385.13

Finding the Fourth Proportional to 143,916.04, 198,599.48 and 79,385.13

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Solution

The fourth proportional to 143,916.04, 198,599.48 and 79,385.13 is: 109,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,916.04 : 198,599.48 = 79,385.13 : x
  2. Step 2: Convert to fraction form
    143,916.04/198,599.48 = 79,385.13/x
  3. Step 3: Cross multiply
    143,916.04x = 198,599.48 × 79,385.13
  4. Step 4: Simplify right side
    143,916.04x = 15,765,845,438.50
  5. Step 5: Solve for x
    x = 15,765,845,438.50/143,916.04
  6. Step 6: Final answer
    x = 109,548.91

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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.