Home / 89,618.40-134,427.60-73,215.90

Finding the Fourth Proportional to 89,618.40, 134,427.60 and 73,215.90

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Solution

The fourth proportional to 89,618.40, 134,427.60 and 73,215.90 is: 109,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,618.40 : 134,427.60 = 73,215.90 : x
  2. Step 2: Convert to fraction form
    89,618.40/134,427.60 = 73,215.90/x
  3. Step 3: Cross multiply
    89,618.40x = 134,427.60 × 73,215.90
  4. Step 4: Simplify right side
    89,618.40x = 9,842,237,718.84
  5. Step 5: Solve for x
    x = 9,842,237,718.84/89,618.40
  6. Step 6: Final answer
    x = 109,823.85

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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.