Home / 112,009.35-154,539.81-66,650.97

Finding the Fourth Proportional to 112,009.35, 154,539.81 and 66,650.97

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Solution

The fourth proportional to 112,009.35, 154,539.81 and 66,650.97 is: 91,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,009.35 : 154,539.81 = 66,650.97 : x
  2. Step 2: Convert to fraction form
    112,009.35/154,539.81 = 66,650.97/x
  3. Step 3: Cross multiply
    112,009.35x = 154,539.81 × 66,650.97
  4. Step 4: Simplify right side
    112,009.35x = 10,300,228,240.12
  5. Step 5: Solve for x
    x = 10,300,228,240.12/112,009.35
  6. Step 6: Final answer
    x = 91,958.65

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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.