Home / 149,200.80-205,971.30-98,246.40

Finding the Fourth Proportional to 149,200.80, 205,971.30 and 98,246.40

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Solution

The fourth proportional to 149,200.80, 205,971.30 and 98,246.40 is: 135,628.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,200.80 : 205,971.30 = 98,246.40 : x
  2. Step 2: Convert to fraction form
    149,200.80/205,971.30 = 98,246.40/x
  3. Step 3: Cross multiply
    149,200.80x = 205,971.30 × 98,246.40
  4. Step 4: Simplify right side
    149,200.80x = 20,235,938,728.32
  5. Step 5: Solve for x
    x = 20,235,938,728.32/149,200.80
  6. Step 6: Final answer
    x = 135,628.89

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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.