Home / 109,634.19-151,284.29-61,878.35

Finding the Fourth Proportional to 109,634.19, 151,284.29 and 61,878.35

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Solution

The fourth proportional to 109,634.19, 151,284.29 and 61,878.35 is: 85,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,634.19 : 151,284.29 = 61,878.35 : x
  2. Step 2: Convert to fraction form
    109,634.19/151,284.29 = 61,878.35/x
  3. Step 3: Cross multiply
    109,634.19x = 151,284.29 × 61,878.35
  4. Step 4: Simplify right side
    109,634.19x = 9,361,221,180.31
  5. Step 5: Solve for x
    x = 9,361,221,180.31/109,634.19
  6. Step 6: Final answer
    x = 85,385.97

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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.