Home / 142,890.36-196,818.30-99,794.04

Finding the Fourth Proportional to 142,890.36, 196,818.30 and 99,794.04

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Solution

The fourth proportional to 142,890.36, 196,818.30 and 99,794.04 is: 137,457.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,890.36 : 196,818.30 = 99,794.04 : x
  2. Step 2: Convert to fraction form
    142,890.36/196,818.30 = 99,794.04/x
  3. Step 3: Cross multiply
    142,890.36x = 196,818.30 × 99,794.04
  4. Step 4: Simplify right side
    142,890.36x = 19,641,293,302.93
  5. Step 5: Solve for x
    x = 19,641,293,302.93/142,890.36
  6. Step 6: Final answer
    x = 137,457.09

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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.