Home / 161,656.40-223,072.20-90,025.04

Finding the Fourth Proportional to 161,656.40, 223,072.20 and 90,025.04

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Solution

The fourth proportional to 161,656.40, 223,072.20 and 90,025.04 is: 124,226.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,656.40 : 223,072.20 = 90,025.04 : x
  2. Step 2: Convert to fraction form
    161,656.40/223,072.20 = 90,025.04/x
  3. Step 3: Cross multiply
    161,656.40x = 223,072.20 × 90,025.04
  4. Step 4: Simplify right side
    161,656.40x = 20,082,083,727.89
  5. Step 5: Solve for x
    x = 20,082,083,727.89/161,656.40
  6. Step 6: Final answer
    x = 124,226.96

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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.