Home / 112,402.30-155,113.35-61,413.94

Finding the Fourth Proportional to 112,402.30, 155,113.35 and 61,413.94

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Solution

The fourth proportional to 112,402.30, 155,113.35 and 61,413.94 is: 84,750.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,402.30 : 155,113.35 = 61,413.94 : x
  2. Step 2: Convert to fraction form
    112,402.30/155,113.35 = 61,413.94/x
  3. Step 3: Cross multiply
    112,402.30x = 155,113.35 × 61,413.94
  4. Step 4: Simplify right side
    112,402.30x = 9,526,121,194.53
  5. Step 5: Solve for x
    x = 9,526,121,194.53/112,402.30
  6. Step 6: Final answer
    x = 84,750.24

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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.