Home / 120,586.14-180,887.88-31,838.76

Finding the Fourth Proportional to 120,586.14, 180,887.88 and 31,838.76

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Solution

The fourth proportional to 120,586.14, 180,887.88 and 31,838.76 is: 47,760.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.14 : 180,887.88 = 31,838.76 : x
  2. Step 2: Convert to fraction form
    120,586.14/180,887.88 = 31,838.76/x
  3. Step 3: Cross multiply
    120,586.14x = 180,887.88 × 31,838.76
  4. Step 4: Simplify right side
    120,586.14x = 5,759,245,798.23
  5. Step 5: Solve for x
    x = 5,759,245,798.23/120,586.14
  6. Step 6: Final answer
    x = 47,760.43

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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.