Home / 148,770.25-205,302.95-81,706.57

Finding the Fourth Proportional to 148,770.25, 205,302.95 and 81,706.57

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Solution

The fourth proportional to 148,770.25, 205,302.95 and 81,706.57 is: 112,755.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,770.25 : 205,302.95 = 81,706.57 : x
  2. Step 2: Convert to fraction form
    148,770.25/205,302.95 = 81,706.57/x
  3. Step 3: Cross multiply
    148,770.25x = 205,302.95 × 81,706.57
  4. Step 4: Simplify right side
    148,770.25x = 16,774,599,446.85
  5. Step 5: Solve for x
    x = 16,774,599,446.85/148,770.25
  6. Step 6: Final answer
    x = 112,755.07

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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.