Home / 161,969.08-223,520.70-90,352.12

Finding the Fourth Proportional to 161,969.08, 223,520.70 and 90,352.12

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Solution

The fourth proportional to 161,969.08, 223,520.70 and 90,352.12 is: 124,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,969.08 : 223,520.70 = 90,352.12 : x
  2. Step 2: Convert to fraction form
    161,969.08/223,520.70 = 90,352.12/x
  3. Step 3: Cross multiply
    161,969.08x = 223,520.70 × 90,352.12
  4. Step 4: Simplify right side
    161,969.08x = 20,195,569,108.88
  5. Step 5: Solve for x
    x = 20,195,569,108.88/161,969.08
  6. Step 6: Final answer
    x = 124,687.81

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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.