Home / 107,243.36-147,999.78-64,793.66

Finding the Fourth Proportional to 107,243.36, 147,999.78 and 64,793.66

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Solution

The fourth proportional to 107,243.36, 147,999.78 and 64,793.66 is: 89,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,243.36 : 147,999.78 = 64,793.66 : x
  2. Step 2: Convert to fraction form
    107,243.36/147,999.78 = 64,793.66/x
  3. Step 3: Cross multiply
    107,243.36x = 147,999.78 × 64,793.66
  4. Step 4: Simplify right side
    107,243.36x = 9,589,447,425.39
  5. Step 5: Solve for x
    x = 9,589,447,425.39/107,243.36
  6. Step 6: Final answer
    x = 89,417.63

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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.