Home / 120,541.16-180,769.78-49,443.60

Finding the Fourth Proportional to 120,541.16, 180,769.78 and 49,443.60

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Solution

The fourth proportional to 120,541.16, 180,769.78 and 49,443.60 is: 74,148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,541.16 : 180,769.78 = 49,443.60 : x
  2. Step 2: Convert to fraction form
    120,541.16/180,769.78 = 49,443.60/x
  3. Step 3: Cross multiply
    120,541.16x = 180,769.78 × 49,443.60
  4. Step 4: Simplify right side
    120,541.16x = 8,937,908,694.41
  5. Step 5: Solve for x
    x = 8,937,908,694.41/120,541.16
  6. Step 6: Final answer
    x = 74,148.19

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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.