Home / 161,819.19-223,313.40-90,191.52

Finding the Fourth Proportional to 161,819.19, 223,313.40 and 90,191.52

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Solution

The fourth proportional to 161,819.19, 223,313.40 and 90,191.52 is: 124,465.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,819.19 : 223,313.40 = 90,191.52 : x
  2. Step 2: Convert to fraction form
    161,819.19/223,313.40 = 90,191.52/x
  3. Step 3: Cross multiply
    161,819.19x = 223,313.40 × 90,191.52
  4. Step 4: Simplify right side
    161,819.19x = 20,140,974,982.37
  5. Step 5: Solve for x
    x = 20,140,974,982.37/161,819.19
  6. Step 6: Final answer
    x = 124,465.92

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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.