Home / 119,912.16-179,960.40-45,087.60

Finding the Fourth Proportional to 119,912.16, 179,960.40 and 45,087.60

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Solution

The fourth proportional to 119,912.16, 179,960.40 and 45,087.60 is: 67,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,912.16 : 179,960.40 = 45,087.60 : x
  2. Step 2: Convert to fraction form
    119,912.16/179,960.40 = 45,087.60/x
  3. Step 3: Cross multiply
    119,912.16x = 179,960.40 × 45,087.60
  4. Step 4: Simplify right side
    119,912.16x = 8,113,982,531.04
  5. Step 5: Solve for x
    x = 8,113,982,531.04/119,912.16
  6. Step 6: Final answer
    x = 67,666.05

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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.