Home / 212,576.32-293,356.16-121,935.68

Finding the Fourth Proportional to 212,576.32, 293,356.16 and 121,935.68

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Solution

The fourth proportional to 212,576.32, 293,356.16 and 121,935.68 is: 168,271.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,576.32 : 293,356.16 = 121,935.68 : x
  2. Step 2: Convert to fraction form
    212,576.32/293,356.16 = 121,935.68/x
  3. Step 3: Cross multiply
    212,576.32x = 293,356.16 × 121,935.68
  4. Step 4: Simplify right side
    212,576.32x = 35,770,582,851.79
  5. Step 5: Solve for x
    x = 35,770,582,851.79/212,576.32
  6. Step 6: Final answer
    x = 168,271.72

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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.