Home / 148,385.36-204,770.76-81,315.92

Finding the Fourth Proportional to 148,385.36, 204,770.76 and 81,315.92

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Solution

The fourth proportional to 148,385.36, 204,770.76 and 81,315.92 is: 112,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,385.36 : 204,770.76 = 81,315.92 : x
  2. Step 2: Convert to fraction form
    148,385.36/204,770.76 = 81,315.92/x
  3. Step 3: Cross multiply
    148,385.36x = 204,770.76 × 81,315.92
  4. Step 4: Simplify right side
    148,385.36x = 16,651,122,738.50
  5. Step 5: Solve for x
    x = 16,651,122,738.50/148,385.36
  6. Step 6: Final answer
    x = 112,215.40

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1.5x scale

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.