Home / 140,151.69-210,301.36-61,321.28

Finding the Fourth Proportional to 140,151.69, 210,301.36 and 61,321.28

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Solution

The fourth proportional to 140,151.69, 210,301.36 and 61,321.28 is: 92,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,151.69 : 210,301.36 = 61,321.28 : x
  2. Step 2: Convert to fraction form
    140,151.69/210,301.36 = 61,321.28/x
  3. Step 3: Cross multiply
    140,151.69x = 210,301.36 × 61,321.28
  4. Step 4: Simplify right side
    140,151.69x = 12,895,947,376.13
  5. Step 5: Solve for x
    x = 12,895,947,376.13/140,151.69
  6. Step 6: Final answer
    x = 92,014.21

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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.