Home / 109,790.82-151,511.61-61,394.46

Finding the Fourth Proportional to 109,790.82, 151,511.61 and 61,394.46

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Solution

The fourth proportional to 109,790.82, 151,511.61 and 61,394.46 is: 84,724.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,790.82 : 151,511.61 = 61,394.46 : x
  2. Step 2: Convert to fraction form
    109,790.82/151,511.61 = 61,394.46/x
  3. Step 3: Cross multiply
    109,790.82x = 151,511.61 × 61,394.46
  4. Step 4: Simplify right side
    109,790.82x = 9,301,973,479.68
  5. Step 5: Solve for x
    x = 9,301,973,479.68/109,790.82
  6. Step 6: Final answer
    x = 84,724.51

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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.