Home / 143,391.50-197,870.91-79,727.02

Finding the Fourth Proportional to 143,391.50, 197,870.91 and 79,727.02

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Solution

The fourth proportional to 143,391.50, 197,870.91 and 79,727.02 is: 110,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,391.50 : 197,870.91 = 79,727.02 : x
  2. Step 2: Convert to fraction form
    143,391.50/197,870.91 = 79,727.02/x
  3. Step 3: Cross multiply
    143,391.50x = 197,870.91 × 79,727.02
  4. Step 4: Simplify right side
    143,391.50x = 15,775,657,998.99
  5. Step 5: Solve for x
    x = 15,775,657,998.99/143,391.50
  6. Step 6: Final answer
    x = 110,018.08

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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.