Home / 118,348.20-177,522.30-91,909.80

Finding the Fourth Proportional to 118,348.20, 177,522.30 and 91,909.80

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Solution

The fourth proportional to 118,348.20, 177,522.30 and 91,909.80 is: 137,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,348.20 : 177,522.30 = 91,909.80 : x
  2. Step 2: Convert to fraction form
    118,348.20/177,522.30 = 91,909.80/x
  3. Step 3: Cross multiply
    118,348.20x = 177,522.30 × 91,909.80
  4. Step 4: Simplify right side
    118,348.20x = 16,316,039,088.54
  5. Step 5: Solve for x
    x = 16,316,039,088.54/118,348.20
  6. Step 6: Final answer
    x = 137,864.70

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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.