Home / 124,428.48-171,712.08-67,840.80

Finding the Fourth Proportional to 124,428.48, 171,712.08 and 67,840.80

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Solution

The fourth proportional to 124,428.48, 171,712.08 and 67,840.80 is: 93,620.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,428.48 : 171,712.08 = 67,840.80 : x
  2. Step 2: Convert to fraction form
    124,428.48/171,712.08 = 67,840.80/x
  3. Step 3: Cross multiply
    124,428.48x = 171,712.08 × 67,840.80
  4. Step 4: Simplify right side
    124,428.48x = 11,649,084,876.86
  5. Step 5: Solve for x
    x = 11,649,084,876.86/124,428.48
  6. Step 6: Final answer
    x = 93,620.73

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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.