Home / 126,209.64-174,166.50-69,621

Finding the Fourth Proportional to 126,209.64, 174,166.50 and 69,621

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Solution

The fourth proportional to 126,209.64, 174,166.50 and 69,621 is: 96,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,209.64 : 174,166.50 = 69,621 : x
  2. Step 2: Convert to fraction form
    126,209.64/174,166.50 = 69,621/x
  3. Step 3: Cross multiply
    126,209.64x = 174,166.50 × 69,621
  4. Step 4: Simplify right side
    126,209.64x = 12,125,645,896.50
  5. Step 5: Solve for x
    x = 12,125,645,896.50/126,209.64
  6. Step 6: Final answer
    x = 96,075.43

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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.