Home / 85,304.40-127,081.11-81,466.23

Finding the Fourth Proportional to 85,304.40, 127,081.11 and 81,466.23

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Solution

The fourth proportional to 85,304.40, 127,081.11 and 81,466.23 is: 121,363.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,304.40 : 127,081.11 = 81,466.23 : x
  2. Step 2: Convert to fraction form
    85,304.40/127,081.11 = 81,466.23/x
  3. Step 3: Cross multiply
    85,304.40x = 127,081.11 × 81,466.23
  4. Step 4: Simplify right side
    85,304.40x = 10,352,818,935.92
  5. Step 5: Solve for x
    x = 10,352,818,935.92/85,304.40
  6. Step 6: Final answer
    x = 121,363.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.