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Finding the Fourth Proportional to 107,959.92, 149,054.04 and 67,728.84

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Solution

The fourth proportional to 107,959.92, 149,054.04 and 67,728.84 is: 93,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,959.92 : 149,054.04 = 67,728.84 : x
  2. Step 2: Convert to fraction form
    107,959.92/149,054.04 = 67,728.84/x
  3. Step 3: Cross multiply
    107,959.92x = 149,054.04 × 67,728.84
  4. Step 4: Simplify right side
    107,959.92x = 10,095,257,226.51
  5. Step 5: Solve for x
    x = 10,095,257,226.51/107,959.92
  6. Step 6: Final answer
    x = 93,509.31

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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.