Home / 143,021.97-214,545.47-53,065.70

Finding the Fourth Proportional to 143,021.97, 214,545.47 and 53,065.70

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Solution

The fourth proportional to 143,021.97, 214,545.47 and 53,065.70 is: 79,603.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,021.97 : 214,545.47 = 53,065.70 : x
  2. Step 2: Convert to fraction form
    143,021.97/214,545.47 = 53,065.70/x
  3. Step 3: Cross multiply
    143,021.97x = 214,545.47 × 53,065.70
  4. Step 4: Simplify right side
    143,021.97x = 11,385,005,818.41
  5. Step 5: Solve for x
    x = 11,385,005,818.41/143,021.97
  6. Step 6: Final answer
    x = 79,603.19

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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.