Home / 149,346.71-206,096.04-81,364.50

Finding the Fourth Proportional to 149,346.71, 206,096.04 and 81,364.50

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Solution

The fourth proportional to 149,346.71, 206,096.04 and 81,364.50 is: 112,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,346.71 : 206,096.04 = 81,364.50 : x
  2. Step 2: Convert to fraction form
    149,346.71/206,096.04 = 81,364.50/x
  3. Step 3: Cross multiply
    149,346.71x = 206,096.04 × 81,364.50
  4. Step 4: Simplify right side
    149,346.71x = 16,768,901,246.58
  5. Step 5: Solve for x
    x = 16,768,901,246.58/149,346.71
  6. Step 6: Final answer
    x = 112,281.70

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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.