Home / 117,977.16-162,806.16-64,261.56

Finding the Fourth Proportional to 117,977.16, 162,806.16 and 64,261.56

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Solution

The fourth proportional to 117,977.16, 162,806.16 and 64,261.56 is: 88,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,977.16 : 162,806.16 = 64,261.56 : x
  2. Step 2: Convert to fraction form
    117,977.16/162,806.16 = 64,261.56/x
  3. Step 3: Cross multiply
    117,977.16x = 162,806.16 × 64,261.56
  4. Step 4: Simplify right side
    117,977.16x = 10,462,177,819.21
  5. Step 5: Solve for x
    x = 10,462,177,819.21/117,977.16
  6. Step 6: Final answer
    x = 88,679.69

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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.