Home / 121,501.20-182,033.10-99,193.80

Finding the Fourth Proportional to 121,501.20, 182,033.10 and 99,193.80

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Solution

The fourth proportional to 121,501.20, 182,033.10 and 99,193.80 is: 148,612.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,501.20 : 182,033.10 = 99,193.80 : x
  2. Step 2: Convert to fraction form
    121,501.20/182,033.10 = 99,193.80/x
  3. Step 3: Cross multiply
    121,501.20x = 182,033.10 × 99,193.80
  4. Step 4: Simplify right side
    121,501.20x = 18,056,554,914.78
  5. Step 5: Solve for x
    x = 18,056,554,914.78/121,501.20
  6. Step 6: Final answer
    x = 148,612.15

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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.