Home / 161,900.28-223,431.28-90,280.22

Finding the Fourth Proportional to 161,900.28, 223,431.28 and 90,280.22

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Solution

The fourth proportional to 161,900.28, 223,431.28 and 90,280.22 is: 124,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,900.28 : 223,431.28 = 90,280.22 : x
  2. Step 2: Convert to fraction form
    161,900.28/223,431.28 = 90,280.22/x
  3. Step 3: Cross multiply
    161,900.28x = 223,431.28 × 90,280.22
  4. Step 4: Simplify right side
    161,900.28x = 20,171,423,770.42
  5. Step 5: Solve for x
    x = 20,171,423,770.42/161,900.28
  6. Step 6: Final answer
    x = 124,591.65

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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.