Home / 89,675.52-134,558.90-68,749.56

Finding the Fourth Proportional to 89,675.52, 134,558.90 and 68,749.56

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Solution

The fourth proportional to 89,675.52, 134,558.90 and 68,749.56 is: 103,159.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,675.52 : 134,558.90 = 68,749.56 : x
  2. Step 2: Convert to fraction form
    89,675.52/134,558.90 = 68,749.56/x
  3. Step 3: Cross multiply
    89,675.52x = 134,558.90 × 68,749.56
  4. Step 4: Simplify right side
    89,675.52x = 9,250,865,169.08
  5. Step 5: Solve for x
    x = 9,250,865,169.08/89,675.52
  6. Step 6: Final answer
    x = 103,159.31

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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.