Home / 126,523.20-190,066.40-105,787.20

Finding the Fourth Proportional to 126,523.20, 190,066.40 and 105,787.20

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Solution

The fourth proportional to 126,523.20, 190,066.40 and 105,787.20 is: 158,916.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,523.20 : 190,066.40 = 105,787.20 : x
  2. Step 2: Convert to fraction form
    126,523.20/190,066.40 = 105,787.20/x
  3. Step 3: Cross multiply
    126,523.20x = 190,066.40 × 105,787.20
  4. Step 4: Simplify right side
    126,523.20x = 20,106,592,270.08
  5. Step 5: Solve for x
    x = 20,106,592,270.08/126,523.20
  6. Step 6: Final answer
    x = 158,916.25

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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.