Home / 128,446.38-192,724.93-53,581.26

Finding the Fourth Proportional to 128,446.38, 192,724.93 and 53,581.26

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Solution

The fourth proportional to 128,446.38, 192,724.93 and 53,581.26 is: 80,394.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,446.38 : 192,724.93 = 53,581.26 : x
  2. Step 2: Convert to fraction form
    128,446.38/192,724.93 = 53,581.26/x
  3. Step 3: Cross multiply
    128,446.38x = 192,724.93 × 53,581.26
  4. Step 4: Simplify right side
    128,446.38x = 10,326,444,582.81
  5. Step 5: Solve for x
    x = 10,326,444,582.81/128,446.38
  6. Step 6: Final answer
    x = 80,394.98

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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.