Home / 157,019.12-235,388.34-57,108.90

Finding the Fourth Proportional to 157,019.12, 235,388.34 and 57,108.90

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Solution

The fourth proportional to 157,019.12, 235,388.34 and 57,108.90 is: 85,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,019.12 : 235,388.34 = 57,108.90 : x
  2. Step 2: Convert to fraction form
    157,019.12/235,388.34 = 57,108.90/x
  3. Step 3: Cross multiply
    157,019.12x = 235,388.34 × 57,108.90
  4. Step 4: Simplify right side
    157,019.12x = 13,442,769,170.23
  5. Step 5: Solve for x
    x = 13,442,769,170.23/157,019.12
  6. Step 6: Final answer
    x = 85,612.31

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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.