Home / 112,578.18-168,887.73-53,413.29

Finding the Fourth Proportional to 112,578.18, 168,887.73 and 53,413.29

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Solution

The fourth proportional to 112,578.18, 168,887.73 and 53,413.29 is: 80,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,578.18 : 168,887.73 = 53,413.29 : x
  2. Step 2: Convert to fraction form
    112,578.18/168,887.73 = 53,413.29/x
  3. Step 3: Cross multiply
    112,578.18x = 168,887.73 × 53,413.29
  4. Step 4: Simplify right side
    112,578.18x = 9,020,849,299.93
  5. Step 5: Solve for x
    x = 9,020,849,299.93/112,578.18
  6. Step 6: Final answer
    x = 80,129.64

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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.