Home / 156,113.57-215,290.51-103,632.73

Finding the Fourth Proportional to 156,113.57, 215,290.51 and 103,632.73

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Solution

The fourth proportional to 156,113.57, 215,290.51 and 103,632.73 is: 142,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,113.57 : 215,290.51 = 103,632.73 : x
  2. Step 2: Convert to fraction form
    156,113.57/215,290.51 = 103,632.73/x
  3. Step 3: Cross multiply
    156,113.57x = 215,290.51 × 103,632.73
  4. Step 4: Simplify right side
    156,113.57x = 22,311,142,497.08
  5. Step 5: Solve for x
    x = 22,311,142,497.08/156,113.57
  6. Step 6: Final answer
    x = 142,916.10

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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.