Home / 149,470.15-206,287.42-85,806.58

Finding the Fourth Proportional to 149,470.15, 206,287.42 and 85,806.58

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Solution

The fourth proportional to 149,470.15, 206,287.42 and 85,806.58 is: 118,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,470.15 : 206,287.42 = 85,806.58 : x
  2. Step 2: Convert to fraction form
    149,470.15/206,287.42 = 85,806.58/x
  3. Step 3: Cross multiply
    149,470.15x = 206,287.42 × 85,806.58
  4. Step 4: Simplify right side
    149,470.15x = 17,700,818,007.22
  5. Step 5: Solve for x
    x = 17,700,818,007.22/149,470.15
  6. Step 6: Final answer
    x = 118,423.77

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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.