Home / 147,484.85-203,449.23-121,839.53

Finding the Fourth Proportional to 147,484.85, 203,449.23 and 121,839.53

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Solution

The fourth proportional to 147,484.85, 203,449.23 and 121,839.53 is: 168,072.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,484.85 : 203,449.23 = 121,839.53 : x
  2. Step 2: Convert to fraction form
    147,484.85/203,449.23 = 121,839.53/x
  3. Step 3: Cross multiply
    147,484.85x = 203,449.23 × 121,839.53
  4. Step 4: Simplify right side
    147,484.85x = 24,788,157,544.82
  5. Step 5: Solve for x
    x = 24,788,157,544.82/147,484.85
  6. Step 6: Final answer
    x = 168,072.57

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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.