Home / 120,432.66-180,814.83-61,309.54

Finding the Fourth Proportional to 120,432.66, 180,814.83 and 61,309.54

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Solution

The fourth proportional to 120,432.66, 180,814.83 and 61,309.54 is: 92,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,432.66 : 180,814.83 = 61,309.54 : x
  2. Step 2: Convert to fraction form
    120,432.66/180,814.83 = 61,309.54/x
  3. Step 3: Cross multiply
    120,432.66x = 180,814.83 × 61,309.54
  4. Step 4: Simplify right side
    120,432.66x = 11,085,674,052.48
  5. Step 5: Solve for x
    x = 11,085,674,052.48/120,432.66
  6. Step 6: Final answer
    x = 92,048.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.