Home / 143,124.61-197,502.83-79,462.39

Finding the Fourth Proportional to 143,124.61, 197,502.83 and 79,462.39

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Solution

The fourth proportional to 143,124.61, 197,502.83 and 79,462.39 is: 109,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,124.61 : 197,502.83 = 79,462.39 : x
  2. Step 2: Convert to fraction form
    143,124.61/197,502.83 = 79,462.39/x
  3. Step 3: Cross multiply
    143,124.61x = 197,502.83 × 79,462.39
  4. Step 4: Simplify right side
    143,124.61x = 15,694,046,506.25
  5. Step 5: Solve for x
    x = 15,694,046,506.25/143,124.61
  6. Step 6: Final answer
    x = 109,653.03

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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.