Home / 140,153.20-210,104.80-51,386.06

Finding the Fourth Proportional to 140,153.20, 210,104.80 and 51,386.06

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Solution

The fourth proportional to 140,153.20, 210,104.80 and 51,386.06 is: 77,033.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,153.20 : 210,104.80 = 51,386.06 : x
  2. Step 2: Convert to fraction form
    140,153.20/210,104.80 = 51,386.06/x
  3. Step 3: Cross multiply
    140,153.20x = 210,104.80 × 51,386.06
  4. Step 4: Simplify right side
    140,153.20x = 10,796,458,255.88
  5. Step 5: Solve for x
    x = 10,796,458,255.88/140,153.20
  6. Step 6: Final answer
    x = 77,033.26

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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.