Home / 156,783.68-216,451.24-103,224.38

Finding the Fourth Proportional to 156,783.68, 216,451.24 and 103,224.38

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Solution

The fourth proportional to 156,783.68, 216,451.24 and 103,224.38 is: 142,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,783.68 : 216,451.24 = 103,224.38 : x
  2. Step 2: Convert to fraction form
    156,783.68/216,451.24 = 103,224.38/x
  3. Step 3: Cross multiply
    156,783.68x = 216,451.24 × 103,224.38
  4. Step 4: Simplify right side
    156,783.68x = 22,343,043,708.91
  5. Step 5: Solve for x
    x = 22,343,043,708.91/156,783.68
  6. Step 6: Final answer
    x = 142,508.74

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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.