Home / 199,928.12-275,856.36-115,045.18

Finding the Fourth Proportional to 199,928.12, 275,856.36 and 115,045.18

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Solution

The fourth proportional to 199,928.12, 275,856.36 and 115,045.18 is: 158,736.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,928.12 : 275,856.36 = 115,045.18 : x
  2. Step 2: Convert to fraction form
    199,928.12/275,856.36 = 115,045.18/x
  3. Step 3: Cross multiply
    199,928.12x = 275,856.36 × 115,045.18
  4. Step 4: Simplify right side
    199,928.12x = 31,735,944,590.34
  5. Step 5: Solve for x
    x = 31,735,944,590.34/199,928.12
  6. Step 6: Final answer
    x = 158,736.77

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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.