Home / 210,121.12-289,991.28-116,996.32

Finding the Fourth Proportional to 210,121.12, 289,991.28 and 116,996.32

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Solution

The fourth proportional to 210,121.12, 289,991.28 and 116,996.32 is: 161,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,121.12 : 289,991.28 = 116,996.32 : x
  2. Step 2: Convert to fraction form
    210,121.12/289,991.28 = 116,996.32/x
  3. Step 3: Cross multiply
    210,121.12x = 289,991.28 × 116,996.32
  4. Step 4: Simplify right side
    210,121.12x = 33,927,912,592.09
  5. Step 5: Solve for x
    x = 33,927,912,592.09/210,121.12
  6. Step 6: Final answer
    x = 161,468.36

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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.