Home / 89,413.08-134,655.17-81,441.52

Finding the Fourth Proportional to 89,413.08, 134,655.17 and 81,441.52

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Solution

The fourth proportional to 89,413.08, 134,655.17 and 81,441.52 is: 122,650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,413.08 : 134,655.17 = 81,441.52 : x
  2. Step 2: Convert to fraction form
    89,413.08/134,655.17 = 81,441.52/x
  3. Step 3: Cross multiply
    89,413.08x = 134,655.17 × 81,441.52
  4. Step 4: Simplify right side
    89,413.08x = 10,966,521,720.66
  5. Step 5: Solve for x
    x = 10,966,521,720.66/89,413.08
  6. Step 6: Final answer
    x = 122,650.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.