Home / 156,741.85-235,112.78-112,783.15

Finding the Fourth Proportional to 156,741.85, 235,112.78 and 112,783.15

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Solution

The fourth proportional to 156,741.85, 235,112.78 and 112,783.15 is: 169,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.85 : 235,112.78 = 112,783.15 : x
  2. Step 2: Convert to fraction form
    156,741.85/235,112.78 = 112,783.15/x
  3. Step 3: Cross multiply
    156,741.85x = 235,112.78 × 112,783.15
  4. Step 4: Simplify right side
    156,741.85x = 26,516,759,933.66
  5. Step 5: Solve for x
    x = 26,516,759,933.66/156,741.85
  6. Step 6: Final answer
    x = 169,174.73

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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.