Home / 209,793.24-289,535.45-128,116.89

Finding the Fourth Proportional to 209,793.24, 289,535.45 and 128,116.89

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Solution

The fourth proportional to 209,793.24, 289,535.45 and 128,116.89 is: 176,813.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,793.24 : 289,535.45 = 128,116.89 : x
  2. Step 2: Convert to fraction form
    209,793.24/289,535.45 = 128,116.89/x
  3. Step 3: Cross multiply
    209,793.24x = 289,535.45 × 128,116.89
  4. Step 4: Simplify right side
    209,793.24x = 37,094,380,758.17
  5. Step 5: Solve for x
    x = 37,094,380,758.17/209,793.24
  6. Step 6: Final answer
    x = 176,813.99

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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.