Home / 115,531.37-159,433.27-64,544.12

Finding the Fourth Proportional to 115,531.37, 159,433.27 and 64,544.12

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Solution

The fourth proportional to 115,531.37, 159,433.27 and 64,544.12 is: 89,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,531.37 : 159,433.27 = 64,544.12 : x
  2. Step 2: Convert to fraction form
    115,531.37/159,433.27 = 64,544.12/x
  3. Step 3: Cross multiply
    115,531.37x = 159,433.27 × 64,544.12
  4. Step 4: Simplify right side
    115,531.37x = 10,290,479,750.22
  5. Step 5: Solve for x
    x = 10,290,479,750.22/115,531.37
  6. Step 6: Final answer
    x = 89,070.87

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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.