Home / 126,810.12-174,986.07-75,812.70

Finding the Fourth Proportional to 126,810.12, 174,986.07 and 75,812.70

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Solution

The fourth proportional to 126,810.12, 174,986.07 and 75,812.70 is: 104,614.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,810.12 : 174,986.07 = 75,812.70 : x
  2. Step 2: Convert to fraction form
    126,810.12/174,986.07 = 75,812.70/x
  3. Step 3: Cross multiply
    126,810.12x = 174,986.07 × 75,812.70
  4. Step 4: Simplify right side
    126,810.12x = 13,266,166,429.09
  5. Step 5: Solve for x
    x = 13,266,166,429.09/126,810.12
  6. Step 6: Final answer
    x = 104,614.41

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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.