Home / 147,255.10-203,206.46-89,990.19

Finding the Fourth Proportional to 147,255.10, 203,206.46 and 89,990.19

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Solution

The fourth proportional to 147,255.10, 203,206.46 and 89,990.19 is: 124,183.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,255.10 : 203,206.46 = 89,990.19 : x
  2. Step 2: Convert to fraction form
    147,255.10/203,206.46 = 89,990.19/x
  3. Step 3: Cross multiply
    147,255.10x = 203,206.46 × 89,990.19
  4. Step 4: Simplify right side
    147,255.10x = 18,286,587,494.68
  5. Step 5: Solve for x
    x = 18,286,587,494.68/147,255.10
  6. Step 6: Final answer
    x = 124,183.05

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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.