Home / 159,039.37-219,479.08-91,078.35

Finding the Fourth Proportional to 159,039.37, 219,479.08 and 91,078.35

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Solution

The fourth proportional to 159,039.37, 219,479.08 and 91,078.35 is: 125,690.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,039.37 : 219,479.08 = 91,078.35 : x
  2. Step 2: Convert to fraction form
    159,039.37/219,479.08 = 91,078.35/x
  3. Step 3: Cross multiply
    159,039.37x = 219,479.08 × 91,078.35
  4. Step 4: Simplify right side
    159,039.37x = 19,989,792,465.92
  5. Step 5: Solve for x
    x = 19,989,792,465.92/159,039.37
  6. Step 6: Final answer
    x = 125,690.84

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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.