Home / 161,694.28-223,145.01-90,074.35

Finding the Fourth Proportional to 161,694.28, 223,145.01 and 90,074.35

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Solution

The fourth proportional to 161,694.28, 223,145.01 and 90,074.35 is: 124,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,694.28 : 223,145.01 = 90,074.35 : x
  2. Step 2: Convert to fraction form
    161,694.28/223,145.01 = 90,074.35/x
  3. Step 3: Cross multiply
    161,694.28x = 223,145.01 × 90,074.35
  4. Step 4: Simplify right side
    161,694.28x = 20,099,641,731.49
  5. Step 5: Solve for x
    x = 20,099,641,731.49/161,694.28
  6. Step 6: Final answer
    x = 124,306.45

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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.