Home / 157,018.78-235,231.48-92,785.32

Finding the Fourth Proportional to 157,018.78, 235,231.48 and 92,785.32

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Solution

The fourth proportional to 157,018.78, 235,231.48 and 92,785.32 is: 139,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,018.78 : 235,231.48 = 92,785.32 : x
  2. Step 2: Convert to fraction form
    157,018.78/235,231.48 = 92,785.32/x
  3. Step 3: Cross multiply
    157,018.78x = 235,231.48 × 92,785.32
  4. Step 4: Simplify right side
    157,018.78x = 21,826,028,145.87
  5. Step 5: Solve for x
    x = 21,826,028,145.87/157,018.78
  6. Step 6: Final answer
    x = 139,002.66

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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.