Home / 147,421.35-203,280.71-99,591.66

Finding the Fourth Proportional to 147,421.35, 203,280.71 and 99,591.66

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Solution

The fourth proportional to 147,421.35, 203,280.71 and 99,591.66 is: 137,327.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,421.35 : 203,280.71 = 99,591.66 : x
  2. Step 2: Convert to fraction form
    147,421.35/203,280.71 = 99,591.66/x
  3. Step 3: Cross multiply
    147,421.35x = 203,280.71 × 99,591.66
  4. Step 4: Simplify right side
    147,421.35x = 20,245,062,856.92
  5. Step 5: Solve for x
    x = 20,245,062,856.92/147,421.35
  6. Step 6: Final answer
    x = 137,327.89

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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.