Home / 135,353.54-186,785.63-74,922.89

Finding the Fourth Proportional to 135,353.54, 186,785.63 and 74,922.89

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Solution

The fourth proportional to 135,353.54, 186,785.63 and 74,922.89 is: 103,392.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,353.54 : 186,785.63 = 74,922.89 : x
  2. Step 2: Convert to fraction form
    135,353.54/186,785.63 = 74,922.89/x
  3. Step 3: Cross multiply
    135,353.54x = 186,785.63 × 74,922.89
  4. Step 4: Simplify right side
    135,353.54x = 13,994,517,901.53
  5. Step 5: Solve for x
    x = 13,994,517,901.53/135,353.54
  6. Step 6: Final answer
    x = 103,392.33

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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.