Home / 161,901.28-223,432.66-90,281.22

Finding the Fourth Proportional to 161,901.28, 223,432.66 and 90,281.22

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Solution

The fourth proportional to 161,901.28, 223,432.66 and 90,281.22 is: 124,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,901.28 : 223,432.66 = 90,281.22 : x
  2. Step 2: Convert to fraction form
    161,901.28/223,432.66 = 90,281.22/x
  3. Step 3: Cross multiply
    161,901.28x = 223,432.66 × 90,281.22
  4. Step 4: Simplify right side
    161,901.28x = 20,171,772,015.48
  5. Step 5: Solve for x
    x = 20,171,772,015.48/161,901.28
  6. Step 6: Final answer
    x = 124,593.04

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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.