Home / 143,001.77-197,342.46-79,339.41

Finding the Fourth Proportional to 143,001.77, 197,342.46 and 79,339.41

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Solution

The fourth proportional to 143,001.77, 197,342.46 and 79,339.41 is: 109,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,001.77 : 197,342.46 = 79,339.41 : x
  2. Step 2: Convert to fraction form
    143,001.77/197,342.46 = 79,339.41/x
  3. Step 3: Cross multiply
    143,001.77x = 197,342.46 × 79,339.41
  4. Step 4: Simplify right side
    143,001.77x = 15,657,034,344.35
  5. Step 5: Solve for x
    x = 15,657,034,344.35/143,001.77
  6. Step 6: Final answer
    x = 109,488.40

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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.