Home / 143,769.56-198,397.42-90,083.57

Finding the Fourth Proportional to 143,769.56, 198,397.42 and 90,083.57

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Solution

The fourth proportional to 143,769.56, 198,397.42 and 90,083.57 is: 124,312.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,769.56 : 198,397.42 = 90,083.57 : x
  2. Step 2: Convert to fraction form
    143,769.56/198,397.42 = 90,083.57/x
  3. Step 3: Cross multiply
    143,769.56x = 198,397.42 × 90,083.57
  4. Step 4: Simplify right side
    143,769.56x = 17,872,346,655.19
  5. Step 5: Solve for x
    x = 17,872,346,655.19/143,769.56
  6. Step 6: Final answer
    x = 124,312.46

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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.