Home / 161,867.37-242,871.03-86,899.98

Finding the Fourth Proportional to 161,867.37, 242,871.03 and 86,899.98

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Solution

The fourth proportional to 161,867.37, 242,871.03 and 86,899.98 is: 130,387.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,867.37 : 242,871.03 = 86,899.98 : x
  2. Step 2: Convert to fraction form
    161,867.37/242,871.03 = 86,899.98/x
  3. Step 3: Cross multiply
    161,867.37x = 242,871.03 × 86,899.98
  4. Step 4: Simplify right side
    161,867.37x = 21,105,487,649.58
  5. Step 5: Solve for x
    x = 21,105,487,649.58/161,867.37
  6. Step 6: Final answer
    x = 130,387.54

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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.