Home / 149,214.96-205,931.52-111,423.60

Finding the Fourth Proportional to 149,214.96, 205,931.52 and 111,423.60

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Solution

The fourth proportional to 149,214.96, 205,931.52 and 111,423.60 is: 153,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,214.96 : 205,931.52 = 111,423.60 : x
  2. Step 2: Convert to fraction form
    149,214.96/205,931.52 = 111,423.60/x
  3. Step 3: Cross multiply
    149,214.96x = 205,931.52 × 111,423.60
  4. Step 4: Simplify right side
    149,214.96x = 22,945,631,311.87
  5. Step 5: Solve for x
    x = 22,945,631,311.87/149,214.96
  6. Step 6: Final answer
    x = 153,775.68

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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.