Home / 126,040.32-174,075.60-85,684.02

Finding the Fourth Proportional to 126,040.32, 174,075.60 and 85,684.02

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Solution

The fourth proportional to 126,040.32, 174,075.60 and 85,684.02 is: 118,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,040.32 : 174,075.60 = 85,684.02 : x
  2. Step 2: Convert to fraction form
    126,040.32/174,075.60 = 85,684.02/x
  3. Step 3: Cross multiply
    126,040.32x = 174,075.60 × 85,684.02
  4. Step 4: Simplify right side
    126,040.32x = 14,915,497,191.91
  5. Step 5: Solve for x
    x = 14,915,497,191.91/126,040.32
  6. Step 6: Final answer
    x = 118,339.09

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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.