Home / 135,819.84-187,430.55-75,399.24

Finding the Fourth Proportional to 135,819.84, 187,430.55 and 75,399.24

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Solution

The fourth proportional to 135,819.84, 187,430.55 and 75,399.24 is: 104,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,819.84 : 187,430.55 = 75,399.24 : x
  2. Step 2: Convert to fraction form
    135,819.84/187,430.55 = 75,399.24/x
  3. Step 3: Cross multiply
    135,819.84x = 187,430.55 × 75,399.24
  4. Step 4: Simplify right side
    135,819.84x = 14,132,121,022.78
  5. Step 5: Solve for x
    x = 14,132,121,022.78/135,819.84
  6. Step 6: Final answer
    x = 104,050.49

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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.