Home / 210,026.42-289,751.78-121,563.43

Finding the Fourth Proportional to 210,026.42, 289,751.78 and 121,563.43

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Solution

The fourth proportional to 210,026.42, 289,751.78 and 121,563.43 is: 167,708.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,026.42 : 289,751.78 = 121,563.43 : x
  2. Step 2: Convert to fraction form
    210,026.42/289,751.78 = 121,563.43/x
  3. Step 3: Cross multiply
    210,026.42x = 289,751.78 × 121,563.43
  4. Step 4: Simplify right side
    210,026.42x = 35,223,220,645.88
  5. Step 5: Solve for x
    x = 35,223,220,645.88/210,026.42
  6. Step 6: Final answer
    x = 167,708.52

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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.