Home / 223,015.55-307,761.75-121,041.01

Finding the Fourth Proportional to 223,015.55, 307,761.75 and 121,041.01

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Solution

The fourth proportional to 223,015.55, 307,761.75 and 121,041.01 is: 167,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,015.55 : 307,761.75 = 121,041.01 : x
  2. Step 2: Convert to fraction form
    223,015.55/307,761.75 = 121,041.01/x
  3. Step 3: Cross multiply
    223,015.55x = 307,761.75 × 121,041.01
  4. Step 4: Simplify right side
    223,015.55x = 37,251,791,520.56
  5. Step 5: Solve for x
    x = 37,251,791,520.56/223,015.55
  6. Step 6: Final answer
    x = 167,036.74

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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.