Home / 149,870.60-206,834.56-86,228.90

Finding the Fourth Proportional to 149,870.60, 206,834.56 and 86,228.90

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Solution

The fourth proportional to 149,870.60, 206,834.56 and 86,228.90 is: 119,003.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,870.60 : 206,834.56 = 86,228.90 : x
  2. Step 2: Convert to fraction form
    149,870.60/206,834.56 = 86,228.90/x
  3. Step 3: Cross multiply
    149,870.60x = 206,834.56 × 86,228.90
  4. Step 4: Simplify right side
    149,870.60x = 17,835,116,590.78
  5. Step 5: Solve for x
    x = 17,835,116,590.78/149,870.60
  6. Step 6: Final answer
    x = 119,003.44

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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.