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Finding the Fourth Proportional to 115,269.40, 173,033.70 and 89,090.20

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Solution

The fourth proportional to 115,269.40, 173,033.70 and 89,090.20 is: 133,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,269.40 : 173,033.70 = 89,090.20 : x
  2. Step 2: Convert to fraction form
    115,269.40/173,033.70 = 89,090.20/x
  3. Step 3: Cross multiply
    115,269.40x = 173,033.70 × 89,090.20
  4. Step 4: Simplify right side
    115,269.40x = 15,415,606,939.74
  5. Step 5: Solve for x
    x = 15,415,606,939.74/115,269.40
  6. Step 6: Final answer
    x = 133,735.47

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1.5x scale

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.