Home / 193,215.10-289,966.65-99,672.70

Finding the Fourth Proportional to 193,215.10, 289,966.65 and 99,672.70

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Solution

The fourth proportional to 193,215.10, 289,966.65 and 99,672.70 is: 149,583.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,215.10 : 289,966.65 = 99,672.70 : x
  2. Step 2: Convert to fraction form
    193,215.10/289,966.65 = 99,672.70/x
  3. Step 3: Cross multiply
    193,215.10x = 289,966.65 × 99,672.70
  4. Step 4: Simplify right side
    193,215.10x = 28,901,758,915.46
  5. Step 5: Solve for x
    x = 28,901,758,915.46/193,215.10
  6. Step 6: Final answer
    x = 149,583.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.