Home / 149,675.28-206,587.40-86,050.12

Finding the Fourth Proportional to 149,675.28, 206,587.40 and 86,050.12

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Solution

The fourth proportional to 149,675.28, 206,587.40 and 86,050.12 is: 118,769.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,675.28 : 206,587.40 = 86,050.12 : x
  2. Step 2: Convert to fraction form
    149,675.28/206,587.40 = 86,050.12/x
  3. Step 3: Cross multiply
    149,675.28x = 206,587.40 × 86,050.12
  4. Step 4: Simplify right side
    149,675.28x = 17,776,870,560.49
  5. Step 5: Solve for x
    x = 17,776,870,560.49/149,675.28
  6. Step 6: Final answer
    x = 118,769.58

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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.