Home / 147,774.30-221,661.45-128,528.70

Finding the Fourth Proportional to 147,774.30, 221,661.45 and 128,528.70

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Solution

The fourth proportional to 147,774.30, 221,661.45 and 128,528.70 is: 192,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,774.30 : 221,661.45 = 128,528.70 : x
  2. Step 2: Convert to fraction form
    147,774.30/221,661.45 = 128,528.70/x
  3. Step 3: Cross multiply
    147,774.30x = 221,661.45 × 128,528.70
  4. Step 4: Simplify right side
    147,774.30x = 28,489,858,008.62
  5. Step 5: Solve for x
    x = 28,489,858,008.62/147,774.30
  6. Step 6: Final answer
    x = 192,793.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.