Home / 261,783.25-392,449.98-90,982.77

Finding the Fourth Proportional to 261,783.25, 392,449.98 and 90,982.77

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Solution

The fourth proportional to 261,783.25, 392,449.98 and 90,982.77 is: 136,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,783.25 : 392,449.98 = 90,982.77 : x
  2. Step 2: Convert to fraction form
    261,783.25/392,449.98 = 90,982.77/x
  3. Step 3: Cross multiply
    261,783.25x = 392,449.98 × 90,982.77
  4. Step 4: Simplify right side
    261,783.25x = 35,706,186,266.84
  5. Step 5: Solve for x
    x = 35,706,186,266.84/261,783.25
  6. Step 6: Final answer
    x = 136,395.99

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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.