Home / 143,555.39-198,102.93-79,024.04

Finding the Fourth Proportional to 143,555.39, 198,102.93 and 79,024.04

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Solution

The fourth proportional to 143,555.39, 198,102.93 and 79,024.04 is: 109,051.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,555.39 : 198,102.93 = 79,024.04 : x
  2. Step 2: Convert to fraction form
    143,555.39/198,102.93 = 79,024.04/x
  3. Step 3: Cross multiply
    143,555.39x = 198,102.93 × 79,024.04
  4. Step 4: Simplify right side
    143,555.39x = 15,654,894,767.42
  5. Step 5: Solve for x
    x = 15,654,894,767.42/143,555.39
  6. Step 6: Final answer
    x = 109,051.25

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1.5x scale

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.