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Finding the Fourth Proportional to 115,370.70, 173,133.45 and 40,490.70

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Solution

The fourth proportional to 115,370.70, 173,133.45 and 40,490.70 is: 60,763.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,370.70 : 173,133.45 = 40,490.70 : x
  2. Step 2: Convert to fraction form
    115,370.70/173,133.45 = 40,490.70/x
  3. Step 3: Cross multiply
    115,370.70x = 173,133.45 × 40,490.70
  4. Step 4: Simplify right side
    115,370.70x = 7,010,294,583.92
  5. Step 5: Solve for x
    x = 7,010,294,583.92/115,370.70
  6. Step 6: Final answer
    x = 60,763.21

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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.