Home / 115,370.32-159,205.88-64,380.28

Finding the Fourth Proportional to 115,370.32, 159,205.88 and 64,380.28

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Solution

The fourth proportional to 115,370.32, 159,205.88 and 64,380.28 is: 88,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,370.32 : 159,205.88 = 64,380.28 : x
  2. Step 2: Convert to fraction form
    115,370.32/159,205.88 = 64,380.28/x
  3. Step 3: Cross multiply
    115,370.32x = 159,205.88 × 64,380.28
  4. Step 4: Simplify right side
    115,370.32x = 10,249,719,132.05
  5. Step 5: Solve for x
    x = 10,249,719,132.05/115,370.32
  6. Step 6: Final answer
    x = 88,841.91

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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.