Home / 102,516.10-153,778.77-31,433.55

Finding the Fourth Proportional to 102,516.10, 153,778.77 and 31,433.55

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Solution

The fourth proportional to 102,516.10, 153,778.77 and 31,433.55 is: 47,151.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,516.10 : 153,778.77 = 31,433.55 : x
  2. Step 2: Convert to fraction form
    102,516.10/153,778.77 = 31,433.55/x
  3. Step 3: Cross multiply
    102,516.10x = 153,778.77 × 31,433.55
  4. Step 4: Simplify right side
    102,516.10x = 4,833,812,196.94
  5. Step 5: Solve for x
    x = 4,833,812,196.94/102,516.10
  6. Step 6: Final answer
    x = 47,151.74

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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.