Home / 161,667.28-223,065.66-98,020.72

Finding the Fourth Proportional to 161,667.28, 223,065.66 and 98,020.72

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Solution

The fourth proportional to 161,667.28, 223,065.66 and 98,020.72 is: 135,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,667.28 : 223,065.66 = 98,020.72 : x
  2. Step 2: Convert to fraction form
    161,667.28/223,065.66 = 98,020.72/x
  3. Step 3: Cross multiply
    161,667.28x = 223,065.66 × 98,020.72
  4. Step 4: Simplify right side
    161,667.28x = 21,865,056,600.48
  5. Step 5: Solve for x
    x = 21,865,056,600.48/161,667.28
  6. Step 6: Final answer
    x = 135,247.26

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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.