Home / 149,921.04-206,914.86-86,246.40

Finding the Fourth Proportional to 149,921.04, 206,914.86 and 86,246.40

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Solution

The fourth proportional to 149,921.04, 206,914.86 and 86,246.40 is: 119,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,921.04 : 206,914.86 = 86,246.40 : x
  2. Step 2: Convert to fraction form
    149,921.04/206,914.86 = 86,246.40/x
  3. Step 3: Cross multiply
    149,921.04x = 206,914.86 × 86,246.40
  4. Step 4: Simplify right side
    149,921.04x = 17,845,661,781.50
  5. Step 5: Solve for x
    x = 17,845,661,781.50/149,921.04
  6. Step 6: Final answer
    x = 119,033.74

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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.