Home / 170,787.40-256,181.10-99,928.60

Finding the Fourth Proportional to 170,787.40, 256,181.10 and 99,928.60

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Solution

The fourth proportional to 170,787.40, 256,181.10 and 99,928.60 is: 149,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,787.40 : 256,181.10 = 99,928.60 : x
  2. Step 2: Convert to fraction form
    170,787.40/256,181.10 = 99,928.60/x
  3. Step 3: Cross multiply
    170,787.40x = 256,181.10 × 99,928.60
  4. Step 4: Simplify right side
    170,787.40x = 25,599,818,669.46
  5. Step 5: Solve for x
    x = 25,599,818,669.46/170,787.40
  6. Step 6: Final answer
    x = 149,892.90

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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.