Home / 105,984.74-158,829.44-79,658.78

Finding the Fourth Proportional to 105,984.74, 158,829.44 and 79,658.78

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Solution

The fourth proportional to 105,984.74, 158,829.44 and 79,658.78 is: 119,377.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,984.74 : 158,829.44 = 79,658.78 : x
  2. Step 2: Convert to fraction form
    105,984.74/158,829.44 = 79,658.78/x
  3. Step 3: Cross multiply
    105,984.74x = 158,829.44 × 79,658.78
  4. Step 4: Simplify right side
    105,984.74x = 12,652,159,418.48
  5. Step 5: Solve for x
    x = 12,652,159,418.48/105,984.74
  6. Step 6: Final answer
    x = 119,377.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.