Home / 124,231.78-171,440.25-67,643.50

Finding the Fourth Proportional to 124,231.78, 171,440.25 and 67,643.50

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Solution

The fourth proportional to 124,231.78, 171,440.25 and 67,643.50 is: 93,348.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,231.78 : 171,440.25 = 67,643.50 : x
  2. Step 2: Convert to fraction form
    124,231.78/171,440.25 = 67,643.50/x
  3. Step 3: Cross multiply
    124,231.78x = 171,440.25 × 67,643.50
  4. Step 4: Simplify right side
    124,231.78x = 11,596,818,550.88
  5. Step 5: Solve for x
    x = 11,596,818,550.88/124,231.78
  6. Step 6: Final answer
    x = 93,348.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.