Home / 208,277.67-312,351.86-75,140.58

Finding the Fourth Proportional to 208,277.67, 312,351.86 and 75,140.58

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Solution

The fourth proportional to 208,277.67, 312,351.86 and 75,140.58 is: 112,687.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,277.67 : 312,351.86 = 75,140.58 : x
  2. Step 2: Convert to fraction form
    208,277.67/312,351.86 = 75,140.58/x
  3. Step 3: Cross multiply
    208,277.67x = 312,351.86 × 75,140.58
  4. Step 4: Simplify right side
    208,277.67x = 23,470,299,924.48
  5. Step 5: Solve for x
    x = 23,470,299,924.48/208,277.67
  6. Step 6: Final answer
    x = 112,687.55

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1.5x scale

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.