Home / 126,119.70-173,985.81-75,103.38

Finding the Fourth Proportional to 126,119.70, 173,985.81 and 75,103.38

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Solution

The fourth proportional to 126,119.70, 173,985.81 and 75,103.38 is: 103,607.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,119.70 : 173,985.81 = 75,103.38 : x
  2. Step 2: Convert to fraction form
    126,119.70/173,985.81 = 75,103.38/x
  3. Step 3: Cross multiply
    126,119.70x = 173,985.81 × 75,103.38
  4. Step 4: Simplify right side
    126,119.70x = 13,066,922,403.04
  5. Step 5: Solve for x
    x = 13,066,922,403.04/126,119.70
  6. Step 6: Final answer
    x = 103,607.31

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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.