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Finding the Fourth Proportional to 123,466.89, 170,384.32 and 66,878.26

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Solution

The fourth proportional to 123,466.89, 170,384.32 and 66,878.26 is: 92,292.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,466.89 : 170,384.32 = 66,878.26 : x
  2. Step 2: Convert to fraction form
    123,466.89/170,384.32 = 66,878.26/x
  3. Step 3: Cross multiply
    123,466.89x = 170,384.32 × 66,878.26
  4. Step 4: Simplify right side
    123,466.89x = 11,395,007,149.46
  5. Step 5: Solve for x
    x = 11,395,007,149.46/123,466.89
  6. Step 6: Final answer
    x = 92,292.01

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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.