Home / 210,121.17-289,967.90-114,629.87

Finding the Fourth Proportional to 210,121.17, 289,967.90 and 114,629.87

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Solution

The fourth proportional to 210,121.17, 289,967.90 and 114,629.87 is: 158,189.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,121.17 : 289,967.90 = 114,629.87 : x
  2. Step 2: Convert to fraction form
    210,121.17/289,967.90 = 114,629.87/x
  3. Step 3: Cross multiply
    210,121.17x = 289,967.90 × 114,629.87
  4. Step 4: Simplify right side
    210,121.17x = 33,238,980,658.18
  5. Step 5: Solve for x
    x = 33,238,980,658.18/210,121.17
  6. Step 6: Final answer
    x = 158,189.58

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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.