Home / 161,743.68-223,213.14-90,123.75

Finding the Fourth Proportional to 161,743.68, 223,213.14 and 90,123.75

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Solution

The fourth proportional to 161,743.68, 223,213.14 and 90,123.75 is: 124,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,743.68 : 223,213.14 = 90,123.75 : x
  2. Step 2: Convert to fraction form
    161,743.68/223,213.14 = 90,123.75/x
  3. Step 3: Cross multiply
    161,743.68x = 223,213.14 × 90,123.75
  4. Step 4: Simplify right side
    161,743.68x = 20,116,805,226.08
  5. Step 5: Solve for x
    x = 20,116,805,226.08/161,743.68
  6. Step 6: Final answer
    x = 124,374.60

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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.