Home / 135,340.33-186,770.07-74,915.17

Finding the Fourth Proportional to 135,340.33, 186,770.07 and 74,915.17

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Solution

The fourth proportional to 135,340.33, 186,770.07 and 74,915.17 is: 103,383.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,340.33 : 186,770.07 = 74,915.17 : x
  2. Step 2: Convert to fraction form
    135,340.33/186,770.07 = 74,915.17/x
  3. Step 3: Cross multiply
    135,340.33x = 186,770.07 × 74,915.17
  4. Step 4: Simplify right side
    135,340.33x = 13,991,911,544.96
  5. Step 5: Solve for x
    x = 13,991,911,544.96/135,340.33
  6. Step 6: Final answer
    x = 103,383.16

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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.