Home / 143,328.90-197,792.91-79,670.46

Finding the Fourth Proportional to 143,328.90, 197,792.91 and 79,670.46

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Solution

The fourth proportional to 143,328.90, 197,792.91 and 79,670.46 is: 109,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,328.90 : 197,792.91 = 79,670.46 : x
  2. Step 2: Convert to fraction form
    143,328.90/197,792.91 = 79,670.46/x
  3. Step 3: Cross multiply
    143,328.90x = 197,792.91 × 79,670.46
  4. Step 4: Simplify right side
    143,328.90x = 15,758,252,124.44
  5. Step 5: Solve for x
    x = 15,758,252,124.44/143,328.90
  6. Step 6: Final answer
    x = 109,944.69

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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.