Home / 156,933.30-235,054.35-139,422.90

Finding the Fourth Proportional to 156,933.30, 235,054.35 and 139,422.90

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Solution

The fourth proportional to 156,933.30, 235,054.35 and 139,422.90 is: 208,827.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,933.30 : 235,054.35 = 139,422.90 : x
  2. Step 2: Convert to fraction form
    156,933.30/235,054.35 = 139,422.90/x
  3. Step 3: Cross multiply
    156,933.30x = 235,054.35 × 139,422.90
  4. Step 4: Simplify right side
    156,933.30x = 32,771,959,134.62
  5. Step 5: Solve for x
    x = 32,771,959,134.62/156,933.30
  6. Step 6: Final answer
    x = 208,827.31

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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.