Home / 143,353.63-197,839.98-79,697.35

Finding the Fourth Proportional to 143,353.63, 197,839.98 and 79,697.35

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Solution

The fourth proportional to 143,353.63, 197,839.98 and 79,697.35 is: 109,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,353.63 : 197,839.98 = 79,697.35 : x
  2. Step 2: Convert to fraction form
    143,353.63/197,839.98 = 79,697.35/x
  3. Step 3: Cross multiply
    143,353.63x = 197,839.98 × 79,697.35
  4. Step 4: Simplify right side
    143,353.63x = 15,767,322,130.05
  5. Step 5: Solve for x
    x = 15,767,322,130.05/143,353.63
  6. Step 6: Final answer
    x = 109,989.00

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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.