Home / 109,508.80-151,121.87-61,110.22

Finding the Fourth Proportional to 109,508.80, 151,121.87 and 61,110.22

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Solution

The fourth proportional to 109,508.80, 151,121.87 and 61,110.22 is: 84,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,508.80 : 151,121.87 = 61,110.22 : x
  2. Step 2: Convert to fraction form
    109,508.80/151,121.87 = 61,110.22/x
  3. Step 3: Cross multiply
    109,508.80x = 151,121.87 × 61,110.22
  4. Step 4: Simplify right side
    109,508.80x = 9,235,089,661.35
  5. Step 5: Solve for x
    x = 9,235,089,661.35/109,508.80
  6. Step 6: Final answer
    x = 84,331.94

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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.