Home / 112,008.40-168,012.60-105,096.40

Finding the Fourth Proportional to 112,008.40, 168,012.60 and 105,096.40

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Solution

The fourth proportional to 112,008.40, 168,012.60 and 105,096.40 is: 157,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,008.40 : 168,012.60 = 105,096.40 : x
  2. Step 2: Convert to fraction form
    112,008.40/168,012.60 = 105,096.40/x
  3. Step 3: Cross multiply
    112,008.40x = 168,012.60 × 105,096.40
  4. Step 4: Simplify right side
    112,008.40x = 17,657,519,414.64
  5. Step 5: Solve for x
    x = 17,657,519,414.64/112,008.40
  6. Step 6: Final answer
    x = 157,644.60

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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.