Home / 201,729.92-278,387.28-111,085.65

Finding the Fourth Proportional to 201,729.92, 278,387.28 and 111,085.65

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Solution

The fourth proportional to 201,729.92, 278,387.28 and 111,085.65 is: 153,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,729.92 : 278,387.28 = 111,085.65 : x
  2. Step 2: Convert to fraction form
    201,729.92/278,387.28 = 111,085.65/x
  3. Step 3: Cross multiply
    201,729.92x = 278,387.28 × 111,085.65
  4. Step 4: Simplify right side
    201,729.92x = 30,924,831,950.53
  5. Step 5: Solve for x
    x = 30,924,831,950.53/201,729.92
  6. Step 6: Final answer
    x = 153,298.20

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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.