Home / 345,146.81-517,776.32-102,012.56

Finding the Fourth Proportional to 345,146.81, 517,776.32 and 102,012.56

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Solution

The fourth proportional to 345,146.81, 517,776.32 and 102,012.56 is: 153,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,146.81 : 517,776.32 = 102,012.56 : x
  2. Step 2: Convert to fraction form
    345,146.81/517,776.32 = 102,012.56/x
  3. Step 3: Cross multiply
    345,146.81x = 517,776.32 × 102,012.56
  4. Step 4: Simplify right side
    345,146.81x = 52,819,684,811.63
  5. Step 5: Solve for x
    x = 52,819,684,811.63/345,146.81
  6. Step 6: Final answer
    x = 153,035.42

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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.