Home / 143,334.32-197,803.72-78,806.28

Finding the Fourth Proportional to 143,334.32, 197,803.72 and 78,806.28

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Solution

The fourth proportional to 143,334.32, 197,803.72 and 78,806.28 is: 108,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,334.32 : 197,803.72 = 78,806.28 : x
  2. Step 2: Convert to fraction form
    143,334.32/197,803.72 = 78,806.28/x
  3. Step 3: Cross multiply
    143,334.32x = 197,803.72 × 78,806.28
  4. Step 4: Simplify right side
    143,334.32x = 15,588,175,343.36
  5. Step 5: Solve for x
    x = 15,588,175,343.36/143,334.32
  6. Step 6: Final answer
    x = 108,753.96

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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.