Home / 84,962.20-127,443.30-73,152.40

Finding the Fourth Proportional to 84,962.20, 127,443.30 and 73,152.40

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Solution

The fourth proportional to 84,962.20, 127,443.30 and 73,152.40 is: 109,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,962.20 : 127,443.30 = 73,152.40 : x
  2. Step 2: Convert to fraction form
    84,962.20/127,443.30 = 73,152.40/x
  3. Step 3: Cross multiply
    84,962.20x = 127,443.30 × 73,152.40
  4. Step 4: Simplify right side
    84,962.20x = 9,322,783,258.92
  5. Step 5: Solve for x
    x = 9,322,783,258.92/84,962.20
  6. Step 6: Final answer
    x = 109,728.60

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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.