Home / 140,569.93-210,821.78-51,775.21

Finding the Fourth Proportional to 140,569.93, 210,821.78 and 51,775.21

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Solution

The fourth proportional to 140,569.93, 210,821.78 and 51,775.21 is: 77,650.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,569.93 : 210,821.78 = 51,775.21 : x
  2. Step 2: Convert to fraction form
    140,569.93/210,821.78 = 51,775.21/x
  3. Step 3: Cross multiply
    140,569.93x = 210,821.78 × 51,775.21
  4. Step 4: Simplify right side
    140,569.93x = 10,915,341,673.20
  5. Step 5: Solve for x
    x = 10,915,341,673.20/140,569.93
  6. Step 6: Final answer
    x = 77,650.62

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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.