Home / 111,875.20-167,812.80-107,574.40

Finding the Fourth Proportional to 111,875.20, 167,812.80 and 107,574.40

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Solution

The fourth proportional to 111,875.20, 167,812.80 and 107,574.40 is: 161,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,875.20 : 167,812.80 = 107,574.40 : x
  2. Step 2: Convert to fraction form
    111,875.20/167,812.80 = 107,574.40/x
  3. Step 3: Cross multiply
    111,875.20x = 167,812.80 × 107,574.40
  4. Step 4: Simplify right side
    111,875.20x = 18,052,361,272.32
  5. Step 5: Solve for x
    x = 18,052,361,272.32/111,875.20
  6. Step 6: Final answer
    x = 161,361.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.