Home / 145,020.56-200,125.34-80,486.04

Finding the Fourth Proportional to 145,020.56, 200,125.34 and 80,486.04

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Solution

The fourth proportional to 145,020.56, 200,125.34 and 80,486.04 is: 111,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,020.56 : 200,125.34 = 80,486.04 : x
  2. Step 2: Convert to fraction form
    145,020.56/200,125.34 = 80,486.04/x
  3. Step 3: Cross multiply
    145,020.56x = 200,125.34 × 80,486.04
  4. Step 4: Simplify right side
    145,020.56x = 16,107,295,717.82
  5. Step 5: Solve for x
    x = 16,107,295,717.82/145,020.56
  6. Step 6: Final answer
    x = 111,069.05

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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.