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Finding the Fourth Proportional to 149,606.60, 206,533.40 and 115,538.60

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Solution

The fourth proportional to 149,606.60, 206,533.40 and 115,538.60 is: 159,502.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,606.60 : 206,533.40 = 115,538.60 : x
  2. Step 2: Convert to fraction form
    149,606.60/206,533.40 = 115,538.60/x
  3. Step 3: Cross multiply
    149,606.60x = 206,533.40 × 115,538.60
  4. Step 4: Simplify right side
    149,606.60x = 23,862,579,827.88
  5. Step 5: Solve for x
    x = 23,862,579,827.88/149,606.60
  6. Step 6: Final answer
    x = 159,502.19

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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.