Home / 112,392.90-155,112.93-61,413.39

Finding the Fourth Proportional to 112,392.90, 155,112.93 and 61,413.39

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Solution

The fourth proportional to 112,392.90, 155,112.93 and 61,413.39 is: 84,756.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,392.90 : 155,112.93 = 61,413.39 : x
  2. Step 2: Convert to fraction form
    112,392.90/155,112.93 = 61,413.39/x
  3. Step 3: Cross multiply
    112,392.90x = 155,112.93 × 61,413.39
  4. Step 4: Simplify right side
    112,392.90x = 9,526,010,864.13
  5. Step 5: Solve for x
    x = 9,526,010,864.13/112,392.90
  6. Step 6: Final answer
    x = 84,756.34

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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.