Home / 103,375.13-142,673.11-63,112.23

Finding the Fourth Proportional to 103,375.13, 142,673.11 and 63,112.23

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Solution

The fourth proportional to 103,375.13, 142,673.11 and 63,112.23 is: 87,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,375.13 : 142,673.11 = 63,112.23 : x
  2. Step 2: Convert to fraction form
    103,375.13/142,673.11 = 63,112.23/x
  3. Step 3: Cross multiply
    103,375.13x = 142,673.11 × 63,112.23
  4. Step 4: Simplify right side
    103,375.13x = 9,004,418,133.14
  5. Step 5: Solve for x
    x = 9,004,418,133.14/103,375.13
  6. Step 6: Final answer
    x = 87,104.30

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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.