Home / 143,088.55-197,471.16-79,427.41

Finding the Fourth Proportional to 143,088.55, 197,471.16 and 79,427.41

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Solution

The fourth proportional to 143,088.55, 197,471.16 and 79,427.41 is: 109,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,088.55 : 197,471.16 = 79,427.41 : x
  2. Step 2: Convert to fraction form
    143,088.55/197,471.16 = 79,427.41/x
  3. Step 3: Cross multiply
    143,088.55x = 197,471.16 × 79,427.41
  4. Step 4: Simplify right side
    143,088.55x = 15,684,622,788.50
  5. Step 5: Solve for x
    x = 15,684,622,788.50/143,088.55
  6. Step 6: Final answer
    x = 109,614.80

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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.