Home / 212,432.28-293,160.24-121,803

Finding the Fourth Proportional to 212,432.28, 293,160.24 and 121,803

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Solution

The fourth proportional to 212,432.28, 293,160.24 and 121,803 is: 168,090.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,432.28 : 293,160.24 = 121,803 : x
  2. Step 2: Convert to fraction form
    212,432.28/293,160.24 = 121,803/x
  3. Step 3: Cross multiply
    212,432.28x = 293,160.24 × 121,803
  4. Step 4: Simplify right side
    212,432.28x = 35,707,796,712.72
  5. Step 5: Solve for x
    x = 35,707,796,712.72/212,432.28
  6. Step 6: Final answer
    x = 168,090.26

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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.