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Finding the Fourth Proportional to 122,083.74, 168,482.56 and 68,368.28

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Solution

The fourth proportional to 122,083.74, 168,482.56 and 68,368.28 is: 94,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,083.74 : 168,482.56 = 68,368.28 : x
  2. Step 2: Convert to fraction form
    122,083.74/168,482.56 = 68,368.28/x
  3. Step 3: Cross multiply
    122,083.74x = 168,482.56 × 68,368.28
  4. Step 4: Simplify right side
    122,083.74x = 11,518,863,087.48
  5. Step 5: Solve for x
    x = 11,518,863,087.48/122,083.74
  6. Step 6: Final answer
    x = 94,352.15

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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.