Home / 157,856.33-236,636.87-57,989.70

Finding the Fourth Proportional to 157,856.33, 236,636.87 and 57,989.70

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Solution

The fourth proportional to 157,856.33, 236,636.87 and 57,989.70 is: 86,930.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,856.33 : 236,636.87 = 57,989.70 : x
  2. Step 2: Convert to fraction form
    157,856.33/236,636.87 = 57,989.70/x
  3. Step 3: Cross multiply
    157,856.33x = 236,636.87 × 57,989.70
  4. Step 4: Simplify right side
    157,856.33x = 13,722,500,810.29
  5. Step 5: Solve for x
    x = 13,722,500,810.29/157,856.33
  6. Step 6: Final answer
    x = 86,930.32

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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.