Home / 135,220.27-186,596.31-74,787.39

Finding the Fourth Proportional to 135,220.27, 186,596.31 and 74,787.39

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Solution

The fourth proportional to 135,220.27, 186,596.31 and 74,787.39 is: 103,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,220.27 : 186,596.31 = 74,787.39 : x
  2. Step 2: Convert to fraction form
    135,220.27/186,596.31 = 74,787.39/x
  3. Step 3: Cross multiply
    135,220.27x = 186,596.31 × 74,787.39
  4. Step 4: Simplify right side
    135,220.27x = 13,955,051,008.53
  5. Step 5: Solve for x
    x = 13,955,051,008.53/135,220.27
  6. Step 6: Final answer
    x = 103,202.36

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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.