Home / 103,209.59-142,297.38-66,846.80

Finding the Fourth Proportional to 103,209.59, 142,297.38 and 66,846.80

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Solution

The fourth proportional to 103,209.59, 142,297.38 and 66,846.80 is: 92,163.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,209.59 : 142,297.38 = 66,846.80 : x
  2. Step 2: Convert to fraction form
    103,209.59/142,297.38 = 66,846.80/x
  3. Step 3: Cross multiply
    103,209.59x = 142,297.38 × 66,846.80
  4. Step 4: Simplify right side
    103,209.59x = 9,512,124,606.45
  5. Step 5: Solve for x
    x = 9,512,124,606.45/103,209.59
  6. Step 6: Final answer
    x = 92,163.18

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1.5x scale

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.