Home / 112,812.40-169,218.60-112,034.80

Finding the Fourth Proportional to 112,812.40, 169,218.60 and 112,034.80

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Solution

The fourth proportional to 112,812.40, 169,218.60 and 112,034.80 is: 168,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,812.40 : 169,218.60 = 112,034.80 : x
  2. Step 2: Convert to fraction form
    112,812.40/169,218.60 = 112,034.80/x
  3. Step 3: Cross multiply
    112,812.40x = 169,218.60 × 112,034.80
  4. Step 4: Simplify right side
    112,812.40x = 18,958,372,007.28
  5. Step 5: Solve for x
    x = 18,958,372,007.28/112,812.40
  6. Step 6: Final answer
    x = 168,052.20

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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.