Home / 126,343.09-174,145.75-89,561.62

Finding the Fourth Proportional to 126,343.09, 174,145.75 and 89,561.62

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Solution

The fourth proportional to 126,343.09, 174,145.75 and 89,561.62 is: 123,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,343.09 : 174,145.75 = 89,561.62 : x
  2. Step 2: Convert to fraction form
    126,343.09/174,145.75 = 89,561.62/x
  3. Step 3: Cross multiply
    126,343.09x = 174,145.75 × 89,561.62
  4. Step 4: Simplify right side
    126,343.09x = 15,596,775,486.12
  5. Step 5: Solve for x
    x = 15,596,775,486.12/126,343.09
  6. Step 6: Final answer
    x = 123,447.79

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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.