Home / 103,413.76-142,632.96-69,867.52

Finding the Fourth Proportional to 103,413.76, 142,632.96 and 69,867.52

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Solution

The fourth proportional to 103,413.76, 142,632.96 and 69,867.52 is: 96,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,413.76 : 142,632.96 = 69,867.52 : x
  2. Step 2: Convert to fraction form
    103,413.76/142,632.96 = 69,867.52/x
  3. Step 3: Cross multiply
    103,413.76x = 142,632.96 × 69,867.52
  4. Step 4: Simplify right side
    103,413.76x = 9,965,411,185.46
  5. Step 5: Solve for x
    x = 9,965,411,185.46/103,413.76
  6. Step 6: Final answer
    x = 96,364.46

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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.