Home / 210,001.20-289,801.80-114,508.08

Finding the Fourth Proportional to 210,001.20, 289,801.80 and 114,508.08

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Solution

The fourth proportional to 210,001.20, 289,801.80 and 114,508.08 is: 158,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,001.20 : 289,801.80 = 114,508.08 : x
  2. Step 2: Convert to fraction form
    210,001.20/289,801.80 = 114,508.08/x
  3. Step 3: Cross multiply
    210,001.20x = 289,801.80 × 114,508.08
  4. Step 4: Simplify right side
    210,001.20x = 33,184,647,698.54
  5. Step 5: Solve for x
    x = 33,184,647,698.54/210,001.20
  6. Step 6: Final answer
    x = 158,021.23

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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.