Home / 143,317.79-214,981.55-38,136.86

Finding the Fourth Proportional to 143,317.79, 214,981.55 and 38,136.86

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Solution

The fourth proportional to 143,317.79, 214,981.55 and 38,136.86 is: 57,206.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,317.79 : 214,981.55 = 38,136.86 : x
  2. Step 2: Convert to fraction form
    143,317.79/214,981.55 = 38,136.86/x
  3. Step 3: Cross multiply
    143,317.79x = 214,981.55 × 38,136.86
  4. Step 4: Simplify right side
    143,317.79x = 8,198,721,274.93
  5. Step 5: Solve for x
    x = 8,198,721,274.93/143,317.79
  6. Step 6: Final answer
    x = 57,206.58

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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.