Finding the Fourth Proportional to 158,883.93, 219,263.76 and 87,270.62
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Solution
The fourth proportional to 158,883.93, 219,263.76 and 87,270.62 is: 120,435.61
Step by Step Solution
- Step 1: Write the proportion equation
158,883.93 : 219,263.76 = 87,270.62 : x - Step 2: Convert to fraction form
158,883.93/219,263.76 = 87,270.62/x - Step 3: Cross multiply
158,883.93x = 219,263.76 × 87,270.62 - Step 4: Simplify right side
158,883.93x = 19,135,283,182.41 - Step 5: Solve for x
x = 19,135,283,182.41/158,883.93 - Step 6: Final answer
x = 120,435.61
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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.