Home / 156,998.12-216,581.20-93,290.80

Finding the Fourth Proportional to 156,998.12, 216,581.20 and 93,290.80

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Solution

The fourth proportional to 156,998.12, 216,581.20 and 93,290.80 is: 128,696.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,998.12 : 216,581.20 = 93,290.80 : x
  2. Step 2: Convert to fraction form
    156,998.12/216,581.20 = 93,290.80/x
  3. Step 3: Cross multiply
    156,998.12x = 216,581.20 × 93,290.80
  4. Step 4: Simplify right side
    156,998.12x = 20,205,033,412.96
  5. Step 5: Solve for x
    x = 20,205,033,412.96/156,998.12
  6. Step 6: Final answer
    x = 128,696.02

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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.