Home / 135,025.19-186,329.05-77,660.18

Finding the Fourth Proportional to 135,025.19, 186,329.05 and 77,660.18

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Solution

The fourth proportional to 135,025.19, 186,329.05 and 77,660.18 is: 107,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,025.19 : 186,329.05 = 77,660.18 : x
  2. Step 2: Convert to fraction form
    135,025.19/186,329.05 = 77,660.18/x
  3. Step 3: Cross multiply
    135,025.19x = 186,329.05 × 77,660.18
  4. Step 4: Simplify right side
    135,025.19x = 14,470,346,436.43
  5. Step 5: Solve for x
    x = 14,470,346,436.43/135,025.19
  6. Step 6: Final answer
    x = 107,167.76

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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.