Home / 135,280.14-186,686.81-74,853.33

Finding the Fourth Proportional to 135,280.14, 186,686.81 and 74,853.33

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Solution

The fourth proportional to 135,280.14, 186,686.81 and 74,853.33 is: 103,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,280.14 : 186,686.81 = 74,853.33 : x
  2. Step 2: Convert to fraction form
    135,280.14/186,686.81 = 74,853.33/x
  3. Step 3: Cross multiply
    135,280.14x = 186,686.81 × 74,853.33
  4. Step 4: Simplify right side
    135,280.14x = 13,974,129,395.58
  5. Step 5: Solve for x
    x = 13,974,129,395.58/135,280.14
  6. Step 6: Final answer
    x = 103,297.72

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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.