Home / 212,434.48-293,157.84-121,790.56

Finding the Fourth Proportional to 212,434.48, 293,157.84 and 121,790.56

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Solution

The fourth proportional to 212,434.48, 293,157.84 and 121,790.56 is: 168,069.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,434.48 : 293,157.84 = 121,790.56 : x
  2. Step 2: Convert to fraction form
    212,434.48/293,157.84 = 121,790.56/x
  3. Step 3: Cross multiply
    212,434.48x = 293,157.84 × 121,790.56
  4. Step 4: Simplify right side
    212,434.48x = 35,703,857,501.99
  5. Step 5: Solve for x
    x = 35,703,857,501.99/212,434.48
  6. Step 6: Final answer
    x = 168,069.97

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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.