Home / 179,541.81-247,755.31-100,971.51

Finding the Fourth Proportional to 179,541.81, 247,755.31 and 100,971.51

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Solution

The fourth proportional to 179,541.81, 247,755.31 and 100,971.51 is: 139,333.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,541.81 : 247,755.31 = 100,971.51 : x
  2. Step 2: Convert to fraction form
    179,541.81/247,755.31 = 100,971.51/x
  3. Step 3: Cross multiply
    179,541.81x = 247,755.31 × 100,971.51
  4. Step 4: Simplify right side
    179,541.81x = 25,016,228,248.55
  5. Step 5: Solve for x
    x = 25,016,228,248.55/179,541.81
  6. Step 6: Final answer
    x = 139,333.72

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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.