Home / 121,185.80-167,265.86-70,190.31

Finding the Fourth Proportional to 121,185.80, 167,265.86 and 70,190.31

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Solution

The fourth proportional to 121,185.80, 167,265.86 and 70,190.31 is: 96,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,185.80 : 167,265.86 = 70,190.31 : x
  2. Step 2: Convert to fraction form
    121,185.80/167,265.86 = 70,190.31/x
  3. Step 3: Cross multiply
    121,185.80x = 167,265.86 × 70,190.31
  4. Step 4: Simplify right side
    121,185.80x = 11,740,442,214.87
  5. Step 5: Solve for x
    x = 11,740,442,214.87/121,185.80
  6. Step 6: Final answer
    x = 96,879.69

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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.