Home / 148,965.75-205,572.74-81,897.75

Finding the Fourth Proportional to 148,965.75, 205,572.74 and 81,897.75

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Solution

The fourth proportional to 148,965.75, 205,572.74 and 81,897.75 is: 113,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,965.75 : 205,572.74 = 81,897.75 : x
  2. Step 2: Convert to fraction form
    148,965.75/205,572.74 = 81,897.75/x
  3. Step 3: Cross multiply
    148,965.75x = 205,572.74 × 81,897.75
  4. Step 4: Simplify right side
    148,965.75x = 16,835,944,457.85
  5. Step 5: Solve for x
    x = 16,835,944,457.85/148,965.75
  6. Step 6: Final answer
    x = 113,018.90

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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.