Home / 201,746.45-278,410.94-115,708.76

Finding the Fourth Proportional to 201,746.45, 278,410.94 and 115,708.76

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Solution

The fourth proportional to 201,746.45, 278,410.94 and 115,708.76 is: 159,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,746.45 : 278,410.94 = 115,708.76 : x
  2. Step 2: Convert to fraction form
    201,746.45/278,410.94 = 115,708.76/x
  3. Step 3: Cross multiply
    201,746.45x = 278,410.94 × 115,708.76
  4. Step 4: Simplify right side
    201,746.45x = 32,214,584,145.18
  5. Step 5: Solve for x
    x = 32,214,584,145.18/201,746.45
  6. Step 6: Final answer
    x = 159,678.57

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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.