Home / 128,432.08-192,500.28-49,511.44

Finding the Fourth Proportional to 128,432.08, 192,500.28 and 49,511.44

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Solution

The fourth proportional to 128,432.08, 192,500.28 and 49,511.44 is: 74,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,432.08 : 192,500.28 = 49,511.44 : x
  2. Step 2: Convert to fraction form
    128,432.08/192,500.28 = 49,511.44/x
  3. Step 3: Cross multiply
    128,432.08x = 192,500.28 × 49,511.44
  4. Step 4: Simplify right side
    128,432.08x = 9,530,966,063.20
  5. Step 5: Solve for x
    x = 9,530,966,063.20/128,432.08
  6. Step 6: Final answer
    x = 74,210.17

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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.