Home / 84,835.20-127,252.80-73,025.40

Finding the Fourth Proportional to 84,835.20, 127,252.80 and 73,025.40

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Solution

The fourth proportional to 84,835.20, 127,252.80 and 73,025.40 is: 109,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,835.20 : 127,252.80 = 73,025.40 : x
  2. Step 2: Convert to fraction form
    84,835.20/127,252.80 = 73,025.40/x
  3. Step 3: Cross multiply
    84,835.20x = 127,252.80 × 73,025.40
  4. Step 4: Simplify right side
    84,835.20x = 9,292,686,621.12
  5. Step 5: Solve for x
    x = 9,292,686,621.12/84,835.20
  6. Step 6: Final answer
    x = 109,538.10

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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.