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Finding the Fourth Proportional to 124,600.82, 172,010.82 and 76,880.48

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Solution

The fourth proportional to 124,600.82, 172,010.82 and 76,880.48 is: 106,133.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,600.82 : 172,010.82 = 76,880.48 : x
  2. Step 2: Convert to fraction form
    124,600.82/172,010.82 = 76,880.48/x
  3. Step 3: Cross multiply
    124,600.82x = 172,010.82 × 76,880.48
  4. Step 4: Simplify right side
    124,600.82x = 13,224,274,406.79
  5. Step 5: Solve for x
    x = 13,224,274,406.79/124,600.82
  6. Step 6: Final answer
    x = 106,133.13

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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.