Home / 135,035.19-186,310.66-77,671.53

Finding the Fourth Proportional to 135,035.19, 186,310.66 and 77,671.53

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Solution

The fourth proportional to 135,035.19, 186,310.66 and 77,671.53 is: 107,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,035.19 : 186,310.66 = 77,671.53 : x
  2. Step 2: Convert to fraction form
    135,035.19/186,310.66 = 77,671.53/x
  3. Step 3: Cross multiply
    135,035.19x = 186,310.66 × 77,671.53
  4. Step 4: Simplify right side
    135,035.19x = 14,471,034,017.51
  5. Step 5: Solve for x
    x = 14,471,034,017.51/135,035.19
  6. Step 6: Final answer
    x = 107,164.91

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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.