Home / 150,860.47-208,164.33-87,185.98

Finding the Fourth Proportional to 150,860.47, 208,164.33 and 87,185.98

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Solution

The fourth proportional to 150,860.47, 208,164.33 and 87,185.98 is: 120,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,860.47 : 208,164.33 = 87,185.98 : x
  2. Step 2: Convert to fraction form
    150,860.47/208,164.33 = 87,185.98/x
  3. Step 3: Cross multiply
    150,860.47x = 208,164.33 × 87,185.98
  4. Step 4: Simplify right side
    150,860.47x = 18,149,011,112.09
  5. Step 5: Solve for x
    x = 18,149,011,112.09/150,860.47
  6. Step 6: Final answer
    x = 120,303.29

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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.