Home / 149,455.17-206,246.46-81,470.67

Finding the Fourth Proportional to 149,455.17, 206,246.46 and 81,470.67

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Solution

The fourth proportional to 149,455.17, 206,246.46 and 81,470.67 is: 112,428.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,455.17 : 206,246.46 = 81,470.67 : x
  2. Step 2: Convert to fraction form
    149,455.17/206,246.46 = 81,470.67/x
  3. Step 3: Cross multiply
    149,455.17x = 206,246.46 × 81,470.67
  4. Step 4: Simplify right side
    149,455.17x = 16,803,037,281.33
  5. Step 5: Solve for x
    x = 16,803,037,281.33/149,455.17
  6. Step 6: Final answer
    x = 112,428.61

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1.5x scale

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.