Home / 143,321.16-197,331.42-130,035.12

Finding the Fourth Proportional to 143,321.16, 197,331.42 and 130,035.12

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Solution

The fourth proportional to 143,321.16, 197,331.42 and 130,035.12 is: 179,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,321.16 : 197,331.42 = 130,035.12 : x
  2. Step 2: Convert to fraction form
    143,321.16/197,331.42 = 130,035.12/x
  3. Step 3: Cross multiply
    143,321.16x = 197,331.42 × 130,035.12
  4. Step 4: Simplify right side
    143,321.16x = 25,660,014,879.47
  5. Step 5: Solve for x
    x = 25,660,014,879.47/143,321.16
  6. Step 6: Final answer
    x = 179,038.57

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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.