Home / 189,344.84-261,286.74-103,298.72

Finding the Fourth Proportional to 189,344.84, 261,286.74 and 103,298.72

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Solution

The fourth proportional to 189,344.84, 261,286.74 and 103,298.72 is: 142,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,344.84 : 261,286.74 = 103,298.72 : x
  2. Step 2: Convert to fraction form
    189,344.84/261,286.74 = 103,298.72/x
  3. Step 3: Cross multiply
    189,344.84x = 261,286.74 × 103,298.72
  4. Step 4: Simplify right side
    189,344.84x = 26,990,585,794.97
  5. Step 5: Solve for x
    x = 26,990,585,794.97/189,344.84
  6. Step 6: Final answer
    x = 142,547.25

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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.