Home / 135,035.24-186,348.64-75,419.24

Finding the Fourth Proportional to 135,035.24, 186,348.64 and 75,419.24

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Solution

The fourth proportional to 135,035.24, 186,348.64 and 75,419.24 is: 104,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,035.24 : 186,348.64 = 75,419.24 : x
  2. Step 2: Convert to fraction form
    135,035.24/186,348.64 = 75,419.24/x
  3. Step 3: Cross multiply
    135,035.24x = 186,348.64 × 75,419.24
  4. Step 4: Simplify right side
    135,035.24x = 14,054,272,803.83
  5. Step 5: Solve for x
    x = 14,054,272,803.83/135,035.24
  6. Step 6: Final answer
    x = 104,078.56

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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.