Home / 105,119.70-157,725.75-55,188.20

Finding the Fourth Proportional to 105,119.70, 157,725.75 and 55,188.20

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Solution

The fourth proportional to 105,119.70, 157,725.75 and 55,188.20 is: 82,806.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,119.70 : 157,725.75 = 55,188.20 : x
  2. Step 2: Convert to fraction form
    105,119.70/157,725.75 = 55,188.20/x
  3. Step 3: Cross multiply
    105,119.70x = 157,725.75 × 55,188.20
  4. Step 4: Simplify right side
    105,119.70x = 8,704,599,447.52
  5. Step 5: Solve for x
    x = 8,704,599,447.52/105,119.70
  6. Step 6: Final answer
    x = 82,806.55

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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.