Home / 112,404.14-155,190.03-72,135.26

Finding the Fourth Proportional to 112,404.14, 155,190.03 and 72,135.26

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Solution

The fourth proportional to 112,404.14, 155,190.03 and 72,135.26 is: 99,593.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,404.14 : 155,190.03 = 72,135.26 : x
  2. Step 2: Convert to fraction form
    112,404.14/155,190.03 = 72,135.26/x
  3. Step 3: Cross multiply
    112,404.14x = 155,190.03 × 72,135.26
  4. Step 4: Simplify right side
    112,404.14x = 11,194,673,163.46
  5. Step 5: Solve for x
    x = 11,194,673,163.46/112,404.14
  6. Step 6: Final answer
    x = 99,593.07

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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.