Home / 212,901.36-293,790.43-122,193.47

Finding the Fourth Proportional to 212,901.36, 293,790.43 and 122,193.47

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Solution

The fourth proportional to 212,901.36, 293,790.43 and 122,193.47 is: 168,619.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,901.36 : 293,790.43 = 122,193.47 : x
  2. Step 2: Convert to fraction form
    212,901.36/293,790.43 = 122,193.47/x
  3. Step 3: Cross multiply
    212,901.36x = 293,790.43 × 122,193.47
  4. Step 4: Simplify right side
    212,901.36x = 35,899,272,094.49
  5. Step 5: Solve for x
    x = 35,899,272,094.49/212,901.36
  6. Step 6: Final answer
    x = 168,619.27

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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.