Home / 109,610.32-151,262.76-61,865.68

Finding the Fourth Proportional to 109,610.32, 151,262.76 and 61,865.68

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Solution

The fourth proportional to 109,610.32, 151,262.76 and 61,865.68 is: 85,374.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,610.32 : 151,262.76 = 61,865.68 : x
  2. Step 2: Convert to fraction form
    109,610.32/151,262.76 = 61,865.68/x
  3. Step 3: Cross multiply
    109,610.32x = 151,262.76 × 61,865.68
  4. Step 4: Simplify right side
    109,610.32x = 9,357,973,506.08
  5. Step 5: Solve for x
    x = 9,357,973,506.08/109,610.32
  6. Step 6: Final answer
    x = 85,374.93

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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.