Home / 161,778.24-223,267.68-90,172.80

Finding the Fourth Proportional to 161,778.24, 223,267.68 and 90,172.80

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Solution

The fourth proportional to 161,778.24, 223,267.68 and 90,172.80 is: 124,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,778.24 : 223,267.68 = 90,172.80 : x
  2. Step 2: Convert to fraction form
    161,778.24/223,267.68 = 90,172.80/x
  3. Step 3: Cross multiply
    161,778.24x = 223,267.68 × 90,172.80
  4. Step 4: Simplify right side
    161,778.24x = 20,132,671,855.10
  5. Step 5: Solve for x
    x = 20,132,671,855.10/161,778.24
  6. Step 6: Final answer
    x = 124,446.11

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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.