Home / 104,965.76-157,432.40-38,390.32

Finding the Fourth Proportional to 104,965.76, 157,432.40 and 38,390.32

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Solution

The fourth proportional to 104,965.76, 157,432.40 and 38,390.32 is: 57,579.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,965.76 : 157,432.40 = 38,390.32 : x
  2. Step 2: Convert to fraction form
    104,965.76/157,432.40 = 38,390.32/x
  3. Step 3: Cross multiply
    104,965.76x = 157,432.40 × 38,390.32
  4. Step 4: Simplify right side
    104,965.76x = 6,043,879,523.18
  5. Step 5: Solve for x
    x = 6,043,879,523.18/104,965.76
  6. Step 6: Final answer
    x = 57,579.54

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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.