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Finding the Fourth Proportional to 104,497.78, 144,209.78 and 61,480.30

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Solution

The fourth proportional to 104,497.78, 144,209.78 and 61,480.30 is: 84,844.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,497.78 : 144,209.78 = 61,480.30 : x
  2. Step 2: Convert to fraction form
    104,497.78/144,209.78 = 61,480.30/x
  3. Step 3: Cross multiply
    104,497.78x = 144,209.78 × 61,480.30
  4. Step 4: Simplify right side
    104,497.78x = 8,866,060,537.33
  5. Step 5: Solve for x
    x = 8,866,060,537.33/104,497.78
  6. Step 6: Final answer
    x = 84,844.49

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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.