Home / 156,919.43-216,548.98-85,299.46

Finding the Fourth Proportional to 156,919.43, 216,548.98 and 85,299.46

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Solution

The fourth proportional to 156,919.43, 216,548.98 and 85,299.46 is: 117,713.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,919.43 : 216,548.98 = 85,299.46 : x
  2. Step 2: Convert to fraction form
    156,919.43/216,548.98 = 85,299.46/x
  3. Step 3: Cross multiply
    156,919.43x = 216,548.98 × 85,299.46
  4. Step 4: Simplify right side
    156,919.43x = 18,471,510,302.93
  5. Step 5: Solve for x
    x = 18,471,510,302.93/156,919.43
  6. Step 6: Final answer
    x = 117,713.34

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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.