Home / 143,377.04-197,854.68-79,710.20

Finding the Fourth Proportional to 143,377.04, 197,854.68 and 79,710.20

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Solution

The fourth proportional to 143,377.04, 197,854.68 and 79,710.20 is: 109,996.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,377.04 : 197,854.68 = 79,710.20 : x
  2. Step 2: Convert to fraction form
    143,377.04/197,854.68 = 79,710.20/x
  3. Step 3: Cross multiply
    143,377.04x = 197,854.68 × 79,710.20
  4. Step 4: Simplify right side
    143,377.04x = 15,771,036,113.74
  5. Step 5: Solve for x
    x = 15,771,036,113.74/143,377.04
  6. Step 6: Final answer
    x = 109,996.94

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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.