Home / 89,915.40-134,768.07-67,657.23

Finding the Fourth Proportional to 89,915.40, 134,768.07 and 67,657.23

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Solution

The fourth proportional to 89,915.40, 134,768.07 and 67,657.23 is: 101,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,915.40 : 134,768.07 = 67,657.23 : x
  2. Step 2: Convert to fraction form
    89,915.40/134,768.07 = 67,657.23/x
  3. Step 3: Cross multiply
    89,915.40x = 134,768.07 × 67,657.23
  4. Step 4: Simplify right side
    89,915.40x = 9,118,034,308.65
  5. Step 5: Solve for x
    x = 9,118,034,308.65/89,915.40
  6. Step 6: Final answer
    x = 101,406.81

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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.