Home / 212,297.31-292,972.61-115,501.72

Finding the Fourth Proportional to 212,297.31, 292,972.61 and 115,501.72

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Solution

The fourth proportional to 212,297.31, 292,972.61 and 115,501.72 is: 159,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,297.31 : 292,972.61 = 115,501.72 : x
  2. Step 2: Convert to fraction form
    212,297.31/292,972.61 = 115,501.72/x
  3. Step 3: Cross multiply
    212,297.31x = 292,972.61 × 115,501.72
  4. Step 4: Simplify right side
    212,297.31x = 33,838,840,367.89
  5. Step 5: Solve for x
    x = 33,838,840,367.89/212,297.31
  6. Step 6: Final answer
    x = 159,393.64

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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.