Home / 212,505.16-293,258.20-121,864.54

Finding the Fourth Proportional to 212,505.16, 293,258.20 and 121,864.54

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Solution

The fourth proportional to 212,505.16, 293,258.20 and 121,864.54 is: 168,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,505.16 : 293,258.20 = 121,864.54 : x
  2. Step 2: Convert to fraction form
    212,505.16/293,258.20 = 121,864.54/x
  3. Step 3: Cross multiply
    212,505.16x = 293,258.20 × 121,864.54
  4. Step 4: Simplify right side
    212,505.16x = 35,737,775,644.23
  5. Step 5: Solve for x
    x = 35,737,775,644.23/212,505.16
  6. Step 6: Final answer
    x = 168,173.68

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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.