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Finding the Fourth Proportional to 113,355, 169,799.12 and 66,494.88

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Solution

The fourth proportional to 113,355, 169,799.12 and 66,494.88 is: 99,605.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,355 : 169,799.12 = 66,494.88 : x
  2. Step 2: Convert to fraction form
    113,355/169,799.12 = 66,494.88/x
  3. Step 3: Cross multiply
    113,355x = 169,799.12 × 66,494.88
  4. Step 4: Simplify right side
    113,355x = 11,290,772,108.51
  5. Step 5: Solve for x
    x = 11,290,772,108.51/113,355
  6. Step 6: Final answer
    x = 99,605.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.