Home / 220,030.69-303,631.85-135,131.35

Finding the Fourth Proportional to 220,030.69, 303,631.85 and 135,131.35

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Solution

The fourth proportional to 220,030.69, 303,631.85 and 135,131.35 is: 186,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,030.69 : 303,631.85 = 135,131.35 : x
  2. Step 2: Convert to fraction form
    220,030.69/303,631.85 = 135,131.35/x
  3. Step 3: Cross multiply
    220,030.69x = 303,631.85 × 135,131.35
  4. Step 4: Simplify right side
    220,030.69x = 41,030,181,793.50
  5. Step 5: Solve for x
    x = 41,030,181,793.50/220,030.69
  6. Step 6: Final answer
    x = 186,474.81

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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.