Home / 112,703.14-155,530.33-64,959.56

Finding the Fourth Proportional to 112,703.14, 155,530.33 and 64,959.56

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Solution

The fourth proportional to 112,703.14, 155,530.33 and 64,959.56 is: 89,644.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,703.14 : 155,530.33 = 64,959.56 : x
  2. Step 2: Convert to fraction form
    112,703.14/155,530.33 = 64,959.56/x
  3. Step 3: Cross multiply
    112,703.14x = 155,530.33 × 64,959.56
  4. Step 4: Simplify right side
    112,703.14x = 10,103,181,446.64
  5. Step 5: Solve for x
    x = 10,103,181,446.64/112,703.14
  6. Step 6: Final answer
    x = 89,644.19

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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.