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Finding the Fourth Proportional to 124,534.75, 171,857.97 and 79,822.75

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Solution

The fourth proportional to 124,534.75, 171,857.97 and 79,822.75 is: 110,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,534.75 : 171,857.97 = 79,822.75 : x
  2. Step 2: Convert to fraction form
    124,534.75/171,857.97 = 79,822.75/x
  3. Step 3: Cross multiply
    124,534.75x = 171,857.97 × 79,822.75
  4. Step 4: Simplify right side
    124,534.75x = 13,718,175,774.82
  5. Step 5: Solve for x
    x = 13,718,175,774.82/124,534.75
  6. Step 6: Final answer
    x = 110,155.40

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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.