Home / 149,506.56-206,411.52-122,342.40

Finding the Fourth Proportional to 149,506.56, 206,411.52 and 122,342.40

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Solution

The fourth proportional to 149,506.56, 206,411.52 and 122,342.40 is: 168,908.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,506.56 : 206,411.52 = 122,342.40 : x
  2. Step 2: Convert to fraction form
    149,506.56/206,411.52 = 122,342.40/x
  3. Step 3: Cross multiply
    149,506.56x = 206,411.52 × 122,342.40
  4. Step 4: Simplify right side
    149,506.56x = 25,252,880,744.45
  5. Step 5: Solve for x
    x = 25,252,880,744.45/149,506.56
  6. Step 6: Final answer
    x = 168,908.18

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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.