Home / 235,182.96-324,516.48-139,687.20

Finding the Fourth Proportional to 235,182.96, 324,516.48 and 139,687.20

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Solution

The fourth proportional to 235,182.96, 324,516.48 and 139,687.20 is: 192,746.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,182.96 : 324,516.48 = 139,687.20 : x
  2. Step 2: Convert to fraction form
    235,182.96/324,516.48 = 139,687.20/x
  3. Step 3: Cross multiply
    235,182.96x = 324,516.48 × 139,687.20
  4. Step 4: Simplify right side
    235,182.96x = 45,330,798,445.06
  5. Step 5: Solve for x
    x = 45,330,798,445.06/235,182.96
  6. Step 6: Final answer
    x = 192,746.95

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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.