Home / 120,039.36-165,655.56-66,323.04

Finding the Fourth Proportional to 120,039.36, 165,655.56 and 66,323.04

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Solution

The fourth proportional to 120,039.36, 165,655.56 and 66,323.04 is: 91,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,039.36 : 165,655.56 = 66,323.04 : x
  2. Step 2: Convert to fraction form
    120,039.36/165,655.56 = 66,323.04/x
  3. Step 3: Cross multiply
    120,039.36x = 165,655.56 × 66,323.04
  4. Step 4: Simplify right side
    120,039.36x = 10,986,780,332.10
  5. Step 5: Solve for x
    x = 10,986,780,332.10/120,039.36
  6. Step 6: Final answer
    x = 91,526.48

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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.