Home / 143,537.76-198,059.76-79,875.36

Finding the Fourth Proportional to 143,537.76, 198,059.76 and 79,875.36

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Solution

The fourth proportional to 143,537.76, 198,059.76 and 79,875.36 is: 110,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,537.76 : 198,059.76 = 79,875.36 : x
  2. Step 2: Convert to fraction form
    143,537.76/198,059.76 = 79,875.36/x
  3. Step 3: Cross multiply
    143,537.76x = 198,059.76 × 79,875.36
  4. Step 4: Simplify right side
    143,537.76x = 15,820,094,631.51
  5. Step 5: Solve for x
    x = 15,820,094,631.51/143,537.76
  6. Step 6: Final answer
    x = 110,215.56

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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.