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Finding the Fourth Proportional to 172,389, 237,894.48 and 96,937.68

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Solution

The fourth proportional to 172,389, 237,894.48 and 96,937.68 is: 133,772.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,389 : 237,894.48 = 96,937.68 : x
  2. Step 2: Convert to fraction form
    172,389/237,894.48 = 96,937.68/x
  3. Step 3: Cross multiply
    172,389x = 237,894.48 × 96,937.68
  4. Step 4: Simplify right side
    172,389x = 23,060,938,976.01
  5. Step 5: Solve for x
    x = 23,060,938,976.01/172,389
  6. Step 6: Final answer
    x = 133,772.68

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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.