Home / 192,639.84-265,868.16-107,774.40

Finding the Fourth Proportional to 192,639.84, 265,868.16 and 107,774.40

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Solution

The fourth proportional to 192,639.84, 265,868.16 and 107,774.40 is: 148,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,639.84 : 265,868.16 = 107,774.40 : x
  2. Step 2: Convert to fraction form
    192,639.84/265,868.16 = 107,774.40/x
  3. Step 3: Cross multiply
    192,639.84x = 265,868.16 × 107,774.40
  4. Step 4: Simplify right side
    192,639.84x = 28,653,781,423.10
  5. Step 5: Solve for x
    x = 28,653,781,423.10/192,639.84
  6. Step 6: Final answer
    x = 148,742.76

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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.