Home / 143,626.64-197,776.79-140,440.30

Finding the Fourth Proportional to 143,626.64, 197,776.79 and 140,440.30

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Solution

The fourth proportional to 143,626.64, 197,776.79 and 140,440.30 is: 193,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,626.64 : 197,776.79 = 140,440.30 : x
  2. Step 2: Convert to fraction form
    143,626.64/197,776.79 = 140,440.30/x
  3. Step 3: Cross multiply
    143,626.64x = 197,776.79 × 140,440.30
  4. Step 4: Simplify right side
    143,626.64x = 27,775,831,050.64
  5. Step 5: Solve for x
    x = 27,775,831,050.64/143,626.64
  6. Step 6: Final answer
    x = 193,389.14

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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.