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Finding the Fourth Proportional to 104,413, 144,036.04 and 66,107.68

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Solution

The fourth proportional to 104,413, 144,036.04 and 66,107.68 is: 91,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,413 : 144,036.04 = 66,107.68 : x
  2. Step 2: Convert to fraction form
    104,413/144,036.04 = 66,107.68/x
  3. Step 3: Cross multiply
    104,413x = 144,036.04 × 66,107.68
  4. Step 4: Simplify right side
    104,413x = 9,521,888,440.79
  5. Step 5: Solve for x
    x = 9,521,888,440.79/104,413
  6. Step 6: Final answer
    x = 91,194.47

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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.