Home / 146,215.95-201,778.64-79,147.95

Finding the Fourth Proportional to 146,215.95, 201,778.64 and 79,147.95

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Solution

The fourth proportional to 146,215.95, 201,778.64 and 79,147.95 is: 109,224.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,215.95 : 201,778.64 = 79,147.95 : x
  2. Step 2: Convert to fraction form
    146,215.95/201,778.64 = 79,147.95/x
  3. Step 3: Cross multiply
    146,215.95x = 201,778.64 × 79,147.95
  4. Step 4: Simplify right side
    146,215.95x = 15,970,365,709.79
  5. Step 5: Solve for x
    x = 15,970,365,709.79/146,215.95
  6. Step 6: Final answer
    x = 109,224.51

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1.5x scale

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.