Home / 343,935.20-515,975.70-104,029.40

Finding the Fourth Proportional to 343,935.20, 515,975.70 and 104,029.40

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Solution

The fourth proportional to 343,935.20, 515,975.70 and 104,029.40 is: 156,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,935.20 : 515,975.70 = 104,029.40 : x
  2. Step 2: Convert to fraction form
    343,935.20/515,975.70 = 104,029.40/x
  3. Step 3: Cross multiply
    343,935.20x = 515,975.70 × 104,029.40
  4. Step 4: Simplify right side
    343,935.20x = 53,676,642,485.58
  5. Step 5: Solve for x
    x = 53,676,642,485.58/343,935.20
  6. Step 6: Final answer
    x = 156,066.15

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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.