Home / 164,839.20-247,258.80-89,930.40

Finding the Fourth Proportional to 164,839.20, 247,258.80 and 89,930.40

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Solution

The fourth proportional to 164,839.20, 247,258.80 and 89,930.40 is: 134,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,839.20 : 247,258.80 = 89,930.40 : x
  2. Step 2: Convert to fraction form
    164,839.20/247,258.80 = 89,930.40/x
  3. Step 3: Cross multiply
    164,839.20x = 247,258.80 × 89,930.40
  4. Step 4: Simplify right side
    164,839.20x = 22,236,082,787.52
  5. Step 5: Solve for x
    x = 22,236,082,787.52/164,839.20
  6. Step 6: Final answer
    x = 134,895.60

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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.