Home / 120,972.48-166,897.80-73,208.40

Finding the Fourth Proportional to 120,972.48, 166,897.80 and 73,208.40

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Solution

The fourth proportional to 120,972.48, 166,897.80 and 73,208.40 is: 101,000.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,972.48 : 166,897.80 = 73,208.40 : x
  2. Step 2: Convert to fraction form
    120,972.48/166,897.80 = 73,208.40/x
  3. Step 3: Cross multiply
    120,972.48x = 166,897.80 × 73,208.40
  4. Step 4: Simplify right side
    120,972.48x = 12,218,320,901.52
  5. Step 5: Solve for x
    x = 12,218,320,901.52/120,972.48
  6. Step 6: Final answer
    x = 101,000.83

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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.