Home / 128,273.10-192,430.71-39,526.62

Finding the Fourth Proportional to 128,273.10, 192,430.71 and 39,526.62

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Solution

The fourth proportional to 128,273.10, 192,430.71 and 39,526.62 is: 59,296.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,273.10 : 192,430.71 = 39,526.62 : x
  2. Step 2: Convert to fraction form
    128,273.10/192,430.71 = 39,526.62/x
  3. Step 3: Cross multiply
    128,273.10x = 192,430.71 × 39,526.62
  4. Step 4: Simplify right side
    128,273.10x = 7,606,135,550.50
  5. Step 5: Solve for x
    x = 7,606,135,550.50/128,273.10
  6. Step 6: Final answer
    x = 59,296.42

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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.