Home / 107,739.28-148,683.77-61,806.82

Finding the Fourth Proportional to 107,739.28, 148,683.77 and 61,806.82

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Solution

The fourth proportional to 107,739.28, 148,683.77 and 61,806.82 is: 85,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,739.28 : 148,683.77 = 61,806.82 : x
  2. Step 2: Convert to fraction form
    107,739.28/148,683.77 = 61,806.82/x
  3. Step 3: Cross multiply
    107,739.28x = 148,683.77 × 61,806.82
  4. Step 4: Simplify right side
    107,739.28x = 9,189,671,009.31
  5. Step 5: Solve for x
    x = 9,189,671,009.31/107,739.28
  6. Step 6: Final answer
    x = 85,295.46

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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.