Home / 121,328.69-167,413.64-67,612.32

Finding the Fourth Proportional to 121,328.69, 167,413.64 and 67,612.32

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Solution

The fourth proportional to 121,328.69, 167,413.64 and 67,612.32 is: 93,293.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,328.69 : 167,413.64 = 67,612.32 : x
  2. Step 2: Convert to fraction form
    121,328.69/167,413.64 = 67,612.32/x
  3. Step 3: Cross multiply
    121,328.69x = 167,413.64 × 67,612.32
  4. Step 4: Simplify right side
    121,328.69x = 11,319,224,261.98
  5. Step 5: Solve for x
    x = 11,319,224,261.98/121,328.69
  6. Step 6: Final answer
    x = 93,293.88

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1.5x scale

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.