Home / 126,680.25-190,075.51-79,403.69

Finding the Fourth Proportional to 126,680.25, 190,075.51 and 79,403.69

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Solution

The fourth proportional to 126,680.25, 190,075.51 and 79,403.69 is: 119,140.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,680.25 : 190,075.51 = 79,403.69 : x
  2. Step 2: Convert to fraction form
    126,680.25/190,075.51 = 79,403.69/x
  3. Step 3: Cross multiply
    126,680.25x = 190,075.51 × 79,403.69
  4. Step 4: Simplify right side
    126,680.25x = 15,092,697,447.08
  5. Step 5: Solve for x
    x = 15,092,697,447.08/126,680.25
  6. Step 6: Final answer
    x = 119,140.09

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1.5x scale

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.