Home / 115,021.94-158,693.64-64,711.22

Finding the Fourth Proportional to 115,021.94, 158,693.64 and 64,711.22

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Solution

The fourth proportional to 115,021.94, 158,693.64 and 64,711.22 is: 89,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,021.94 : 158,693.64 = 64,711.22 : x
  2. Step 2: Convert to fraction form
    115,021.94/158,693.64 = 64,711.22/x
  3. Step 3: Cross multiply
    115,021.94x = 158,693.64 × 64,711.22
  4. Step 4: Simplify right side
    115,021.94x = 10,269,259,050.64
  5. Step 5: Solve for x
    x = 10,269,259,050.64/115,021.94
  6. Step 6: Final answer
    x = 89,280.87

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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.