Home / 139,430.04-192,413.30-75,767.68

Finding the Fourth Proportional to 139,430.04, 192,413.30 and 75,767.68

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Solution

The fourth proportional to 139,430.04, 192,413.30 and 75,767.68 is: 104,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,430.04 : 192,413.30 = 75,767.68 : x
  2. Step 2: Convert to fraction form
    139,430.04/192,413.30 = 75,767.68/x
  3. Step 3: Cross multiply
    139,430.04x = 192,413.30 × 75,767.68
  4. Step 4: Simplify right side
    139,430.04x = 14,578,709,342.14
  5. Step 5: Solve for x
    x = 14,578,709,342.14/139,430.04
  6. Step 6: Final answer
    x = 104,559.31

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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.