Home / 209,278.92-288,808.02-113,785.68

Finding the Fourth Proportional to 209,278.92, 288,808.02 and 113,785.68

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Solution

The fourth proportional to 209,278.92, 288,808.02 and 113,785.68 is: 157,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,278.92 : 288,808.02 = 113,785.68 : x
  2. Step 2: Convert to fraction form
    209,278.92/288,808.02 = 113,785.68/x
  3. Step 3: Cross multiply
    209,278.92x = 288,808.02 × 113,785.68
  4. Step 4: Simplify right side
    209,278.92x = 32,862,216,945.15
  5. Step 5: Solve for x
    x = 32,862,216,945.15/209,278.92
  6. Step 6: Final answer
    x = 157,025.93

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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.