Home / 109,820.78-151,551.08-62,072.50

Finding the Fourth Proportional to 109,820.78, 151,551.08 and 62,072.50

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Solution

The fourth proportional to 109,820.78, 151,551.08 and 62,072.50 is: 85,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,820.78 : 151,551.08 = 62,072.50 : x
  2. Step 2: Convert to fraction form
    109,820.78/151,551.08 = 62,072.50/x
  3. Step 3: Cross multiply
    109,820.78x = 151,551.08 × 62,072.50
  4. Step 4: Simplify right side
    109,820.78x = 9,407,154,413.30
  5. Step 5: Solve for x
    x = 9,407,154,413.30/109,820.78
  6. Step 6: Final answer
    x = 85,659.15

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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.