Home / 149,534.64-206,357.98-81,551.72

Finding the Fourth Proportional to 149,534.64, 206,357.98 and 81,551.72

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Solution

The fourth proportional to 149,534.64, 206,357.98 and 81,551.72 is: 112,541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,534.64 : 206,357.98 = 81,551.72 : x
  2. Step 2: Convert to fraction form
    149,534.64/206,357.98 = 81,551.72/x
  3. Step 3: Cross multiply
    149,534.64x = 206,357.98 × 81,551.72
  4. Step 4: Simplify right side
    149,534.64x = 16,828,848,204.73
  5. Step 5: Solve for x
    x = 16,828,848,204.73/149,534.64
  6. Step 6: Final answer
    x = 112,541.47

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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.