Home / 115,120.03-158,863.23-64,132.69

Finding the Fourth Proportional to 115,120.03, 158,863.23 and 64,132.69

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Solution

The fourth proportional to 115,120.03, 158,863.23 and 64,132.69 is: 88,501.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,120.03 : 158,863.23 = 64,132.69 : x
  2. Step 2: Convert to fraction form
    115,120.03/158,863.23 = 64,132.69/x
  3. Step 3: Cross multiply
    115,120.03x = 158,863.23 × 64,132.69
  4. Step 4: Simplify right side
    115,120.03x = 10,188,326,281.99
  5. Step 5: Solve for x
    x = 10,188,326,281.99/115,120.03
  6. Step 6: Final answer
    x = 88,501.77

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1.5x scale

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.