Home / 115,126.12-158,888.58-64,825

Finding the Fourth Proportional to 115,126.12, 158,888.58 and 64,825

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Solution

The fourth proportional to 115,126.12, 158,888.58 and 64,825 is: 89,466.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,126.12 : 158,888.58 = 64,825 : x
  2. Step 2: Convert to fraction form
    115,126.12/158,888.58 = 64,825/x
  3. Step 3: Cross multiply
    115,126.12x = 158,888.58 × 64,825
  4. Step 4: Simplify right side
    115,126.12x = 10,299,952,198.50
  5. Step 5: Solve for x
    x = 10,299,952,198.50/115,126.12
  6. Step 6: Final answer
    x = 89,466.68

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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.