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Finding the Fourth Proportional to 122,305.13, 168,703.41 and 88,363.49

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Solution

The fourth proportional to 122,305.13, 168,703.41 and 88,363.49 is: 121,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,305.13 : 168,703.41 = 88,363.49 : x
  2. Step 2: Convert to fraction form
    122,305.13/168,703.41 = 88,363.49/x
  3. Step 3: Cross multiply
    122,305.13x = 168,703.41 × 88,363.49
  4. Step 4: Simplify right side
    122,305.13x = 14,907,222,082.50
  5. Step 5: Solve for x
    x = 14,907,222,082.50/122,305.13
  6. Step 6: Final answer
    x = 121,885.50

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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.