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Finding the Fourth Proportional to 115,153.91, 172,737.05 and 36,274.31

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Solution

The fourth proportional to 115,153.91, 172,737.05 and 36,274.31 is: 54,413.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,153.91 : 172,737.05 = 36,274.31 : x
  2. Step 2: Convert to fraction form
    115,153.91/172,737.05 = 36,274.31/x
  3. Step 3: Cross multiply
    115,153.91x = 172,737.05 × 36,274.31
  4. Step 4: Simplify right side
    115,153.91x = 6,265,916,255.13
  5. Step 5: Solve for x
    x = 6,265,916,255.13/115,153.91
  6. Step 6: Final answer
    x = 54,413.41

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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.