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Finding the Fourth Proportional to 122,376.96, 168,837.30 and 77,058.90

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Solution

The fourth proportional to 122,376.96, 168,837.30 and 77,058.90 is: 106,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,376.96 : 168,837.30 = 77,058.90 : x
  2. Step 2: Convert to fraction form
    122,376.96/168,837.30 = 77,058.90/x
  3. Step 3: Cross multiply
    122,376.96x = 168,837.30 × 77,058.90
  4. Step 4: Simplify right side
    122,376.96x = 13,010,416,616.97
  5. Step 5: Solve for x
    x = 13,010,416,616.97/122,376.96
  6. Step 6: Final answer
    x = 106,314.27

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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.