Home / 142,299.93-196,357.19-78,633.93

Finding the Fourth Proportional to 142,299.93, 196,357.19 and 78,633.93

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Solution

The fourth proportional to 142,299.93, 196,357.19 and 78,633.93 is: 108,505.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,299.93 : 196,357.19 = 78,633.93 : x
  2. Step 2: Convert to fraction form
    142,299.93/196,357.19 = 78,633.93/x
  3. Step 3: Cross multiply
    142,299.93x = 196,357.19 × 78,633.93
  4. Step 4: Simplify right side
    142,299.93x = 15,440,337,140.29
  5. Step 5: Solve for x
    x = 15,440,337,140.29/142,299.93
  6. Step 6: Final answer
    x = 108,505.58

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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.