Home / 157,787.76-236,675.16-87,622.32

Finding the Fourth Proportional to 157,787.76, 236,675.16 and 87,622.32

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Solution

The fourth proportional to 157,787.76, 236,675.16 and 87,622.32 is: 131,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,787.76 : 236,675.16 = 87,622.32 : x
  2. Step 2: Convert to fraction form
    157,787.76/236,675.16 = 87,622.32/x
  3. Step 3: Cross multiply
    157,787.76x = 236,675.16 × 87,622.32
  4. Step 4: Simplify right side
    157,787.76x = 20,738,026,605.57
  5. Step 5: Solve for x
    x = 20,738,026,605.57/157,787.76
  6. Step 6: Final answer
    x = 131,429.88

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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.