Home / 102,938.55-154,465.43-43,764.15

Finding the Fourth Proportional to 102,938.55, 154,465.43 and 43,764.15

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Solution

The fourth proportional to 102,938.55, 154,465.43 and 43,764.15 is: 65,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,938.55 : 154,465.43 = 43,764.15 : x
  2. Step 2: Convert to fraction form
    102,938.55/154,465.43 = 43,764.15/x
  3. Step 3: Cross multiply
    102,938.55x = 154,465.43 × 43,764.15
  4. Step 4: Simplify right side
    102,938.55x = 6,760,048,029.51
  5. Step 5: Solve for x
    x = 6,760,048,029.51/102,938.55
  6. Step 6: Final answer
    x = 65,670.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.