Home / 115,702.49-159,673.07-65,404.73

Finding the Fourth Proportional to 115,702.49, 159,673.07 and 65,404.73

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Solution

The fourth proportional to 115,702.49, 159,673.07 and 65,404.73 is: 90,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,702.49 : 159,673.07 = 65,404.73 : x
  2. Step 2: Convert to fraction form
    115,702.49/159,673.07 = 65,404.73/x
  3. Step 3: Cross multiply
    115,702.49x = 159,673.07 × 65,404.73
  4. Step 4: Simplify right side
    115,702.49x = 10,443,373,704.60
  5. Step 5: Solve for x
    x = 10,443,373,704.60/115,702.49
  6. Step 6: Final answer
    x = 90,260.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.