Home / 161,701.28-223,147.89-90,081.48

Finding the Fourth Proportional to 161,701.28, 223,147.89 and 90,081.48

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Solution

The fourth proportional to 161,701.28, 223,147.89 and 90,081.48 is: 124,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,701.28 : 223,147.89 = 90,081.48 : x
  2. Step 2: Convert to fraction form
    161,701.28/223,147.89 = 90,081.48/x
  3. Step 3: Cross multiply
    161,701.28x = 223,147.89 × 90,081.48
  4. Step 4: Simplify right side
    161,701.28x = 20,101,492,190.08
  5. Step 5: Solve for x
    x = 20,101,492,190.08/161,701.28
  6. Step 6: Final answer
    x = 124,312.51

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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.