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Finding the Fourth Proportional to 161,750.68, 223,213.68 and 90,133.72

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Solution

The fourth proportional to 161,750.68, 223,213.68 and 90,133.72 is: 124,383.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,750.68 : 223,213.68 = 90,133.72 : x
  2. Step 2: Convert to fraction form
    161,750.68/223,213.68 = 90,133.72/x
  3. Step 3: Cross multiply
    161,750.68x = 223,213.68 × 90,133.72
  4. Step 4: Simplify right side
    161,750.68x = 20,119,079,333.29
  5. Step 5: Solve for x
    x = 20,119,079,333.29/161,750.68
  6. Step 6: Final answer
    x = 124,383.28

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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.