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Finding the Fourth Proportional to 158,880.06, 219,245.94 and 90,889.74

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Solution

The fourth proportional to 158,880.06, 219,245.94 and 90,889.74 is: 125,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,880.06 : 219,245.94 = 90,889.74 : x
  2. Step 2: Convert to fraction form
    158,880.06/219,245.94 = 90,889.74/x
  3. Step 3: Cross multiply
    158,880.06x = 219,245.94 × 90,889.74
  4. Step 4: Simplify right side
    158,880.06x = 19,927,206,482.66
  5. Step 5: Solve for x
    x = 19,927,206,482.66/158,880.06
  6. Step 6: Final answer
    x = 125,422.95

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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.