Home / 126,646.46-174,734.48-72,930.08

Finding the Fourth Proportional to 126,646.46, 174,734.48 and 72,930.08

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Solution

The fourth proportional to 126,646.46, 174,734.48 and 72,930.08 is: 100,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,646.46 : 174,734.48 = 72,930.08 : x
  2. Step 2: Convert to fraction form
    126,646.46/174,734.48 = 72,930.08/x
  3. Step 3: Cross multiply
    126,646.46x = 174,734.48 × 72,930.08
  4. Step 4: Simplify right side
    126,646.46x = 12,743,399,605.16
  5. Step 5: Solve for x
    x = 12,743,399,605.16/126,646.46
  6. Step 6: Final answer
    x = 100,621.84

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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.