Home / 128,225.52-192,356.46-39,486.24

Finding the Fourth Proportional to 128,225.52, 192,356.46 and 39,486.24

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Solution

The fourth proportional to 128,225.52, 192,356.46 and 39,486.24 is: 59,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,225.52 : 192,356.46 = 39,486.24 : x
  2. Step 2: Convert to fraction form
    128,225.52/192,356.46 = 39,486.24/x
  3. Step 3: Cross multiply
    128,225.52x = 192,356.46 × 39,486.24
  4. Step 4: Simplify right side
    128,225.52x = 7,595,433,345.11
  5. Step 5: Solve for x
    x = 7,595,433,345.11/128,225.52
  6. Step 6: Final answer
    x = 59,234.96

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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.