Home / 210,633.03-290,825.79-130,170.87

Finding the Fourth Proportional to 210,633.03, 290,825.79 and 130,170.87

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Solution

The fourth proportional to 210,633.03, 290,825.79 and 130,170.87 is: 179,729.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,633.03 : 290,825.79 = 130,170.87 : x
  2. Step 2: Convert to fraction form
    210,633.03/290,825.79 = 130,170.87/x
  3. Step 3: Cross multiply
    210,633.03x = 290,825.79 × 130,170.87
  4. Step 4: Simplify right side
    210,633.03x = 37,857,046,102.74
  5. Step 5: Solve for x
    x = 37,857,046,102.74/210,633.03
  6. Step 6: Final answer
    x = 179,729.87

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1.5x scale

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.