Home / 150,163.80-207,272.16-86,543.96

Finding the Fourth Proportional to 150,163.80, 207,272.16 and 86,543.96

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Solution

The fourth proportional to 150,163.80, 207,272.16 and 86,543.96 is: 119,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,163.80 : 207,272.16 = 86,543.96 : x
  2. Step 2: Convert to fraction form
    150,163.80/207,272.16 = 86,543.96/x
  3. Step 3: Cross multiply
    150,163.80x = 207,272.16 × 86,543.96
  4. Step 4: Simplify right side
    150,163.80x = 17,938,153,524.15
  5. Step 5: Solve for x
    x = 17,938,153,524.15/150,163.80
  6. Step 6: Final answer
    x = 119,457.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.