Home / 161,738.24-223,195.81-90,116.72

Finding the Fourth Proportional to 161,738.24, 223,195.81 and 90,116.72

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Solution

The fourth proportional to 161,738.24, 223,195.81 and 90,116.72 is: 124,359.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,738.24 : 223,195.81 = 90,116.72 : x
  2. Step 2: Convert to fraction form
    161,738.24/223,195.81 = 90,116.72/x
  3. Step 3: Cross multiply
    161,738.24x = 223,195.81 × 90,116.72
  4. Step 4: Simplify right side
    161,738.24x = 20,113,672,748.38
  5. Step 5: Solve for x
    x = 20,113,672,748.38/161,738.24
  6. Step 6: Final answer
    x = 124,359.41

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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.