Home / 345,266.16-517,976.51-105,401.38

Finding the Fourth Proportional to 345,266.16, 517,976.51 and 105,401.38

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Solution

The fourth proportional to 345,266.16, 517,976.51 and 105,401.38 is: 158,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,266.16 : 517,976.51 = 105,401.38 : x
  2. Step 2: Convert to fraction form
    345,266.16/517,976.51 = 105,401.38/x
  3. Step 3: Cross multiply
    345,266.16x = 517,976.51 × 105,401.38
  4. Step 4: Simplify right side
    345,266.16x = 54,595,438,961.58
  5. Step 5: Solve for x
    x = 54,595,438,961.58/345,266.16
  6. Step 6: Final answer
    x = 158,125.66

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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.