Home / 161,746.80-223,227-90,138.48

Finding the Fourth Proportional to 161,746.80, 223,227 and 90,138.48

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Solution

The fourth proportional to 161,746.80, 223,227 and 90,138.48 is: 124,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,746.80 : 223,227 = 90,138.48 : x
  2. Step 2: Convert to fraction form
    161,746.80/223,227 = 90,138.48/x
  3. Step 3: Cross multiply
    161,746.80x = 223,227 × 90,138.48
  4. Step 4: Simplify right side
    161,746.80x = 20,121,342,474.96
  5. Step 5: Solve for x
    x = 20,121,342,474.96/161,746.80
  6. Step 6: Final answer
    x = 124,400.25

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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.