Home / 128,044.08-192,063.60-57,874.32

Finding the Fourth Proportional to 128,044.08, 192,063.60 and 57,874.32

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Solution

The fourth proportional to 128,044.08, 192,063.60 and 57,874.32 is: 86,810.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,044.08 : 192,063.60 = 57,874.32 : x
  2. Step 2: Convert to fraction form
    128,044.08/192,063.60 = 57,874.32/x
  3. Step 3: Cross multiply
    128,044.08x = 192,063.60 × 57,874.32
  4. Step 4: Simplify right side
    128,044.08x = 11,115,550,246.75
  5. Step 5: Solve for x
    x = 11,115,550,246.75/128,044.08
  6. Step 6: Final answer
    x = 86,810.34

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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.