Home / 156,921.15-235,381.73-137,238.15

Finding the Fourth Proportional to 156,921.15, 235,381.73 and 137,238.15

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Solution

The fourth proportional to 156,921.15, 235,381.73 and 137,238.15 is: 205,857.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.15 : 235,381.73 = 137,238.15 : x
  2. Step 2: Convert to fraction form
    156,921.15/235,381.73 = 137,238.15/x
  3. Step 3: Cross multiply
    156,921.15x = 235,381.73 × 137,238.15
  4. Step 4: Simplify right side
    156,921.15x = 32,303,353,169.00
  5. Step 5: Solve for x
    x = 32,303,353,169.00/156,921.15
  6. Step 6: Final answer
    x = 205,857.23

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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.