Home / 128,513.10-192,782.72-44,262.30

Finding the Fourth Proportional to 128,513.10, 192,782.72 and 44,262.30

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Solution

The fourth proportional to 128,513.10, 192,782.72 and 44,262.30 is: 66,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,513.10 : 192,782.72 = 44,262.30 : x
  2. Step 2: Convert to fraction form
    128,513.10/192,782.72 = 44,262.30/x
  3. Step 3: Cross multiply
    128,513.10x = 192,782.72 × 44,262.30
  4. Step 4: Simplify right side
    128,513.10x = 8,533,006,587.46
  5. Step 5: Solve for x
    x = 8,533,006,587.46/128,513.10
  6. Step 6: Final answer
    x = 66,397.95

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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.