Home / 157,828.10-217,793.81-89,861.60

Finding the Fourth Proportional to 157,828.10, 217,793.81 and 89,861.60

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Solution

The fourth proportional to 157,828.10, 217,793.81 and 89,861.60 is: 124,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,828.10 : 217,793.81 = 89,861.60 : x
  2. Step 2: Convert to fraction form
    157,828.10/217,793.81 = 89,861.60/x
  3. Step 3: Cross multiply
    157,828.10x = 217,793.81 × 89,861.60
  4. Step 4: Simplify right side
    157,828.10x = 19,571,301,005.83
  5. Step 5: Solve for x
    x = 19,571,301,005.83/157,828.10
  6. Step 6: Final answer
    x = 124,003.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.