Home / 148,129.92-204,423.84-81,063.36

Finding the Fourth Proportional to 148,129.92, 204,423.84 and 81,063.36

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Solution

The fourth proportional to 148,129.92, 204,423.84 and 81,063.36 is: 111,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,129.92 : 204,423.84 = 81,063.36 : x
  2. Step 2: Convert to fraction form
    148,129.92/204,423.84 = 81,063.36/x
  3. Step 3: Cross multiply
    148,129.92x = 204,423.84 × 81,063.36
  4. Step 4: Simplify right side
    148,129.92x = 16,571,283,334.50
  5. Step 5: Solve for x
    x = 16,571,283,334.50/148,129.92
  6. Step 6: Final answer
    x = 111,869.93

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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.