Home / 185,074.92-255,445.55-120,430.23

Finding the Fourth Proportional to 185,074.92, 255,445.55 and 120,430.23

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Solution

The fourth proportional to 185,074.92, 255,445.55 and 120,430.23 is: 166,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,074.92 : 255,445.55 = 120,430.23 : x
  2. Step 2: Convert to fraction form
    185,074.92/255,445.55 = 120,430.23/x
  3. Step 3: Cross multiply
    185,074.92x = 255,445.55 × 120,430.23
  4. Step 4: Simplify right side
    185,074.92x = 30,763,366,338.98
  5. Step 5: Solve for x
    x = 30,763,366,338.98/185,074.92
  6. Step 6: Final answer
    x = 166,221.15

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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.