Home / 120,253.24-165,945.48-66,538.36

Finding the Fourth Proportional to 120,253.24, 165,945.48 and 66,538.36

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Solution

The fourth proportional to 120,253.24, 165,945.48 and 66,538.36 is: 91,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,253.24 : 165,945.48 = 66,538.36 : x
  2. Step 2: Convert to fraction form
    120,253.24/165,945.48 = 66,538.36/x
  3. Step 3: Cross multiply
    120,253.24x = 165,945.48 × 66,538.36
  4. Step 4: Simplify right side
    120,253.24x = 11,041,740,088.61
  5. Step 5: Solve for x
    x = 11,041,740,088.61/120,253.24
  6. Step 6: Final answer
    x = 91,820.73

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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.