Home / 212,897.63-293,785.31-122,189.76

Finding the Fourth Proportional to 212,897.63, 293,785.31 and 122,189.76

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Solution

The fourth proportional to 212,897.63, 293,785.31 and 122,189.76 is: 168,614.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,897.63 : 293,785.31 = 122,189.76 : x
  2. Step 2: Convert to fraction form
    212,897.63/293,785.31 = 122,189.76/x
  3. Step 3: Cross multiply
    212,897.63x = 293,785.31 × 122,189.76
  4. Step 4: Simplify right side
    212,897.63x = 35,897,556,825.90
  5. Step 5: Solve for x
    x = 35,897,556,825.90/212,897.63
  6. Step 6: Final answer
    x = 168,614.17

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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.