Home / 135,025.75-186,335.54-75,409.75

Finding the Fourth Proportional to 135,025.75, 186,335.54 and 75,409.75

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Solution

The fourth proportional to 135,025.75, 186,335.54 and 75,409.75 is: 104,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,025.75 : 186,335.54 = 75,409.75 : x
  2. Step 2: Convert to fraction form
    135,025.75/186,335.54 = 75,409.75/x
  3. Step 3: Cross multiply
    135,025.75x = 186,335.54 × 75,409.75
  4. Step 4: Simplify right side
    135,025.75x = 14,051,516,487.52
  5. Step 5: Solve for x
    x = 14,051,516,487.52/135,025.75
  6. Step 6: Final answer
    x = 104,065.46

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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.