Home / 161,811.23-223,307.16-90,191.84

Finding the Fourth Proportional to 161,811.23, 223,307.16 and 90,191.84

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Solution

The fourth proportional to 161,811.23, 223,307.16 and 90,191.84 is: 124,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,811.23 : 223,307.16 = 90,191.84 : x
  2. Step 2: Convert to fraction form
    161,811.23/223,307.16 = 90,191.84/x
  3. Step 3: Cross multiply
    161,811.23x = 223,307.16 × 90,191.84
  4. Step 4: Simplify right side
    161,811.23x = 20,140,483,645.57
  5. Step 5: Solve for x
    x = 20,140,483,645.57/161,811.23
  6. Step 6: Final answer
    x = 124,469.01

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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.