Home / 135,913.92-187,554.72-75,488.40

Finding the Fourth Proportional to 135,913.92, 187,554.72 and 75,488.40

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Solution

The fourth proportional to 135,913.92, 187,554.72 and 75,488.40 is: 104,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,913.92 : 187,554.72 = 75,488.40 : x
  2. Step 2: Convert to fraction form
    135,913.92/187,554.72 = 75,488.40/x
  3. Step 3: Cross multiply
    135,913.92x = 187,554.72 × 75,488.40
  4. Step 4: Simplify right side
    135,913.92x = 14,158,205,725.25
  5. Step 5: Solve for x
    x = 14,158,205,725.25/135,913.92
  6. Step 6: Final answer
    x = 104,170.39

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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.