Home / 84,901.20-127,351.80-73,091.40

Finding the Fourth Proportional to 84,901.20, 127,351.80 and 73,091.40

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Solution

The fourth proportional to 84,901.20, 127,351.80 and 73,091.40 is: 109,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,901.20 : 127,351.80 = 73,091.40 : x
  2. Step 2: Convert to fraction form
    84,901.20/127,351.80 = 73,091.40/x
  3. Step 3: Cross multiply
    84,901.20x = 127,351.80 × 73,091.40
  4. Step 4: Simplify right side
    84,901.20x = 9,308,321,354.52
  5. Step 5: Solve for x
    x = 9,308,321,354.52/84,901.20
  6. Step 6: Final answer
    x = 109,637.10

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1.5x scale

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.