Home / 109,569.58-151,213.14-61,805.50

Finding the Fourth Proportional to 109,569.58, 151,213.14 and 61,805.50

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Solution

The fourth proportional to 109,569.58, 151,213.14 and 61,805.50 is: 85,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,569.58 : 151,213.14 = 61,805.50 : x
  2. Step 2: Convert to fraction form
    109,569.58/151,213.14 = 61,805.50/x
  3. Step 3: Cross multiply
    109,569.58x = 151,213.14 × 61,805.50
  4. Step 4: Simplify right side
    109,569.58x = 9,345,803,724.27
  5. Step 5: Solve for x
    x = 9,345,803,724.27/109,569.58
  6. Step 6: Final answer
    x = 85,295.61

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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.