Home / 124,860.52-187,285.79-68,811.76

Finding the Fourth Proportional to 124,860.52, 187,285.79 and 68,811.76

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Solution

The fourth proportional to 124,860.52, 187,285.79 and 68,811.76 is: 103,214.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,860.52 : 187,285.79 = 68,811.76 : x
  2. Step 2: Convert to fraction form
    124,860.52/187,285.79 = 68,811.76/x
  3. Step 3: Cross multiply
    124,860.52x = 187,285.79 × 68,811.76
  4. Step 4: Simplify right side
    124,860.52x = 12,887,464,832.89
  5. Step 5: Solve for x
    x = 12,887,464,832.89/124,860.52
  6. Step 6: Final answer
    x = 103,214.89

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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.