Home / 207,042.64-285,716.10-115,161.30

Finding the Fourth Proportional to 207,042.64, 285,716.10 and 115,161.30

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Solution

The fourth proportional to 207,042.64, 285,716.10 and 115,161.30 is: 158,921.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,042.64 : 285,716.10 = 115,161.30 : x
  2. Step 2: Convert to fraction form
    207,042.64/285,716.10 = 115,161.30/x
  3. Step 3: Cross multiply
    207,042.64x = 285,716.10 × 115,161.30
  4. Step 4: Simplify right side
    207,042.64x = 32,903,437,075.08
  5. Step 5: Solve for x
    x = 32,903,437,075.08/207,042.64
  6. Step 6: Final answer
    x = 158,921.07

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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.