Home / 109,513.44-151,128.46-61,766.68

Finding the Fourth Proportional to 109,513.44, 151,128.46 and 61,766.68

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Solution

The fourth proportional to 109,513.44, 151,128.46 and 61,766.68 is: 85,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,513.44 : 151,128.46 = 61,766.68 : x
  2. Step 2: Convert to fraction form
    109,513.44/151,128.46 = 61,766.68/x
  3. Step 3: Cross multiply
    109,513.44x = 151,128.46 × 61,766.68
  4. Step 4: Simplify right side
    109,513.44x = 9,334,703,227.71
  5. Step 5: Solve for x
    x = 9,334,703,227.71/109,513.44
  6. Step 6: Final answer
    x = 85,237.97

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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.