Home / 128,403.23-192,590.26-49,510.85

Finding the Fourth Proportional to 128,403.23, 192,590.26 and 49,510.85

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Solution

The fourth proportional to 128,403.23, 192,590.26 and 49,510.85 is: 74,260.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,403.23 : 192,590.26 = 49,510.85 : x
  2. Step 2: Convert to fraction form
    128,403.23/192,590.26 = 49,510.85/x
  3. Step 3: Cross multiply
    128,403.23x = 192,590.26 × 49,510.85
  4. Step 4: Simplify right side
    128,403.23x = 9,535,306,387.59
  5. Step 5: Solve for x
    x = 9,535,306,387.59/128,403.23
  6. Step 6: Final answer
    x = 74,260.65

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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.