Home / 143,523.48-198,070.18-79,862.66

Finding the Fourth Proportional to 143,523.48, 198,070.18 and 79,862.66

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Solution

The fourth proportional to 143,523.48, 198,070.18 and 79,862.66 is: 110,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,523.48 : 198,070.18 = 79,862.66 : x
  2. Step 2: Convert to fraction form
    143,523.48/198,070.18 = 79,862.66/x
  3. Step 3: Cross multiply
    143,523.48x = 198,070.18 × 79,862.66
  4. Step 4: Simplify right side
    143,523.48x = 15,818,411,441.48
  5. Step 5: Solve for x
    x = 15,818,411,441.48/143,523.48
  6. Step 6: Final answer
    x = 110,214.80

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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.