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Finding the Fourth Proportional to 154,883.48, 213,814.28 and 103,877.56

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Solution

The fourth proportional to 154,883.48, 213,814.28 and 103,877.56 is: 143,401.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,883.48 : 213,814.28 = 103,877.56 : x
  2. Step 2: Convert to fraction form
    154,883.48/213,814.28 = 103,877.56/x
  3. Step 3: Cross multiply
    154,883.48x = 213,814.28 × 103,877.56
  4. Step 4: Simplify right side
    154,883.48x = 22,210,505,699.56
  5. Step 5: Solve for x
    x = 22,210,505,699.56/154,883.48
  6. Step 6: Final answer
    x = 143,401.39

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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.