Home / 131,724.95-181,778.60-75,137.27

Finding the Fourth Proportional to 131,724.95, 181,778.60 and 75,137.27

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Solution

The fourth proportional to 131,724.95, 181,778.60 and 75,137.27 is: 103,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,724.95 : 181,778.60 = 75,137.27 : x
  2. Step 2: Convert to fraction form
    131,724.95/181,778.60 = 75,137.27/x
  3. Step 3: Cross multiply
    131,724.95x = 181,778.60 × 75,137.27
  4. Step 4: Simplify right side
    131,724.95x = 13,658,347,372.74
  5. Step 5: Solve for x
    x = 13,658,347,372.74/131,724.95
  6. Step 6: Final answer
    x = 103,688.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.