Home / 161,636.32-223,057.56-90,017.20

Finding the Fourth Proportional to 161,636.32, 223,057.56 and 90,017.20

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Solution

The fourth proportional to 161,636.32, 223,057.56 and 90,017.20 is: 124,223.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,636.32 : 223,057.56 = 90,017.20 : x
  2. Step 2: Convert to fraction form
    161,636.32/223,057.56 = 90,017.20/x
  3. Step 3: Cross multiply
    161,636.32x = 223,057.56 × 90,017.20
  4. Step 4: Simplify right side
    161,636.32x = 20,079,016,990.03
  5. Step 5: Solve for x
    x = 20,079,016,990.03/161,636.32
  6. Step 6: Final answer
    x = 124,223.42

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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.