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Finding the Fourth Proportional to 123,071.25, 169,838.33 and 66,482.63

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Solution

The fourth proportional to 123,071.25, 169,838.33 and 66,482.63 is: 91,746.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,071.25 : 169,838.33 = 66,482.63 : x
  2. Step 2: Convert to fraction form
    123,071.25/169,838.33 = 66,482.63/x
  3. Step 3: Cross multiply
    123,071.25x = 169,838.33 × 66,482.63
  4. Step 4: Simplify right side
    123,071.25x = 11,291,297,671.60
  5. Step 5: Solve for x
    x = 11,291,297,671.60/123,071.25
  6. Step 6: Final answer
    x = 91,746.02

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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.