Home / 161,317.18-222,548.07-100,782.46

Finding the Fourth Proportional to 161,317.18, 222,548.07 and 100,782.46

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Solution

The fourth proportional to 161,317.18, 222,548.07 and 100,782.46 is: 139,036.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,317.18 : 222,548.07 = 100,782.46 : x
  2. Step 2: Convert to fraction form
    161,317.18/222,548.07 = 100,782.46/x
  3. Step 3: Cross multiply
    161,317.18x = 222,548.07 × 100,782.46
  4. Step 4: Simplify right side
    161,317.18x = 22,428,941,962.85
  5. Step 5: Solve for x
    x = 22,428,941,962.85/161,317.18
  6. Step 6: Final answer
    x = 139,036.29

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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.