Home / 161,944.85-223,484.21-90,329.51

Finding the Fourth Proportional to 161,944.85, 223,484.21 and 90,329.51

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Solution

The fourth proportional to 161,944.85, 223,484.21 and 90,329.51 is: 124,654.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,944.85 : 223,484.21 = 90,329.51 : x
  2. Step 2: Convert to fraction form
    161,944.85/223,484.21 = 90,329.51/x
  3. Step 3: Cross multiply
    161,944.85x = 223,484.21 × 90,329.51
  4. Step 4: Simplify right side
    161,944.85x = 20,187,217,612.97
  5. Step 5: Solve for x
    x = 20,187,217,612.97/161,944.85
  6. Step 6: Final answer
    x = 124,654.89

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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.