Home / 128,155.26-192,329.10-48,272.04

Finding the Fourth Proportional to 128,155.26, 192,329.10 and 48,272.04

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Solution

The fourth proportional to 128,155.26, 192,329.10 and 48,272.04 is: 72,444.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,155.26 : 192,329.10 = 48,272.04 : x
  2. Step 2: Convert to fraction form
    128,155.26/192,329.10 = 48,272.04/x
  3. Step 3: Cross multiply
    128,155.26x = 192,329.10 × 48,272.04
  4. Step 4: Simplify right side
    128,155.26x = 9,284,118,008.36
  5. Step 5: Solve for x
    x = 9,284,118,008.36/128,155.26
  6. Step 6: Final answer
    x = 72,444.30

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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.