Home / 208,269.14-312,407.55-75,159.38

Finding the Fourth Proportional to 208,269.14, 312,407.55 and 75,159.38

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Solution

The fourth proportional to 208,269.14, 312,407.55 and 75,159.38 is: 112,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,269.14 : 312,407.55 = 75,159.38 : x
  2. Step 2: Convert to fraction form
    208,269.14/312,407.55 = 75,159.38/x
  3. Step 3: Cross multiply
    208,269.14x = 312,407.55 × 75,159.38
  4. Step 4: Simplify right side
    208,269.14x = 23,480,357,765.32
  5. Step 5: Solve for x
    x = 23,480,357,765.32/208,269.14
  6. Step 6: Final answer
    x = 112,740.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.