Home / 179,709.38-247,988.31-99,137.06

Finding the Fourth Proportional to 179,709.38, 247,988.31 and 99,137.06

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Solution

The fourth proportional to 179,709.38, 247,988.31 and 99,137.06 is: 136,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,709.38 : 247,988.31 = 99,137.06 : x
  2. Step 2: Convert to fraction form
    179,709.38/247,988.31 = 99,137.06/x
  3. Step 3: Cross multiply
    179,709.38x = 247,988.31 × 99,137.06
  4. Step 4: Simplify right side
    179,709.38x = 24,584,831,967.77
  5. Step 5: Solve for x
    x = 24,584,831,967.77/179,709.38
  6. Step 6: Final answer
    x = 136,803.28

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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.