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Finding the Fourth Proportional to 132,422.70, 182,722.17 and 87,119.01

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Solution

The fourth proportional to 132,422.70, 182,722.17 and 87,119.01 is: 120,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,422.70 : 182,722.17 = 87,119.01 : x
  2. Step 2: Convert to fraction form
    132,422.70/182,722.17 = 87,119.01/x
  3. Step 3: Cross multiply
    132,422.70x = 182,722.17 × 87,119.01
  4. Step 4: Simplify right side
    132,422.70x = 15,918,574,555.45
  5. Step 5: Solve for x
    x = 15,918,574,555.45/132,422.70
  6. Step 6: Final answer
    x = 120,210.32

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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.