Home / 126,679.20-190,047.60-74,061.60

Finding the Fourth Proportional to 126,679.20, 190,047.60 and 74,061.60

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Solution

The fourth proportional to 126,679.20, 190,047.60 and 74,061.60 is: 111,109.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,679.20 : 190,047.60 = 74,061.60 : x
  2. Step 2: Convert to fraction form
    126,679.20/190,047.60 = 74,061.60/x
  3. Step 3: Cross multiply
    126,679.20x = 190,047.60 × 74,061.60
  4. Step 4: Simplify right side
    126,679.20x = 14,075,229,332.16
  5. Step 5: Solve for x
    x = 14,075,229,332.16/126,679.20
  6. Step 6: Final answer
    x = 111,109.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.