Home / 143,316.37-197,775.16-79,652.80

Finding the Fourth Proportional to 143,316.37, 197,775.16 and 79,652.80

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Solution

The fourth proportional to 143,316.37, 197,775.16 and 79,652.80 is: 109,920.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,316.37 : 197,775.16 = 79,652.80 : x
  2. Step 2: Convert to fraction form
    143,316.37/197,775.16 = 79,652.80/x
  3. Step 3: Cross multiply
    143,316.37x = 197,775.16 × 79,652.80
  4. Step 4: Simplify right side
    143,316.37x = 15,753,345,264.45
  5. Step 5: Solve for x
    x = 15,753,345,264.45/143,316.37
  6. Step 6: Final answer
    x = 109,920.07

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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.