Home / 135,718.46-187,313.93-75,308.56

Finding the Fourth Proportional to 135,718.46, 187,313.93 and 75,308.56

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Solution

The fourth proportional to 135,718.46, 187,313.93 and 75,308.56 is: 103,938.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,718.46 : 187,313.93 = 75,308.56 : x
  2. Step 2: Convert to fraction form
    135,718.46/187,313.93 = 75,308.56/x
  3. Step 3: Cross multiply
    135,718.46x = 187,313.93 × 75,308.56
  4. Step 4: Simplify right side
    135,718.46x = 14,106,341,023.13
  5. Step 5: Solve for x
    x = 14,106,341,023.13/135,718.46
  6. Step 6: Final answer
    x = 103,938.27

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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.