Finding the Fourth Proportional to 158,955.36, 219,454.56 and 105,286.08
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Solution
The fourth proportional to 158,955.36, 219,454.56 and 105,286.08 is: 145,358.49
Step by Step Solution
- Step 1: Write the proportion equation
158,955.36 : 219,454.56 = 105,286.08 : x - Step 2: Convert to fraction form
158,955.36/219,454.56 = 105,286.08/x - Step 3: Cross multiply
158,955.36x = 219,454.56 × 105,286.08 - Step 4: Simplify right side
158,955.36x = 23,105,510,360.52 - Step 5: Solve for x
x = 23,105,510,360.52/158,955.36 - Step 6: Final answer
x = 145,358.49
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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.