Home / 135,216.68-186,597.42-74,782.58

Finding the Fourth Proportional to 135,216.68, 186,597.42 and 74,782.58

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Solution

The fourth proportional to 135,216.68, 186,597.42 and 74,782.58 is: 103,199.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,216.68 : 186,597.42 = 74,782.58 : x
  2. Step 2: Convert to fraction form
    135,216.68/186,597.42 = 74,782.58/x
  3. Step 3: Cross multiply
    135,216.68x = 186,597.42 × 74,782.58
  4. Step 4: Simplify right side
    135,216.68x = 13,954,236,488.94
  5. Step 5: Solve for x
    x = 13,954,236,488.94/135,216.68
  6. Step 6: Final answer
    x = 103,199.08

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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.