Home / 120,816.40-181,248.90-101,230.60

Finding the Fourth Proportional to 120,816.40, 181,248.90 and 101,230.60

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Solution

The fourth proportional to 120,816.40, 181,248.90 and 101,230.60 is: 151,866.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,816.40 : 181,248.90 = 101,230.60 : x
  2. Step 2: Convert to fraction form
    120,816.40/181,248.90 = 101,230.60/x
  3. Step 3: Cross multiply
    120,816.40x = 181,248.90 × 101,230.60
  4. Step 4: Simplify right side
    120,816.40x = 18,347,934,896.34
  5. Step 5: Solve for x
    x = 18,347,934,896.34/120,816.40
  6. Step 6: Final answer
    x = 151,866.26

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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.