Finding the Fourth Proportional to 153,952.44, 212,435.62 and 85,973.19
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Solution
The fourth proportional to 153,952.44, 212,435.62 and 85,973.19 is: 118,632.53
Step by Step Solution
- Step 1: Write the proportion equation
153,952.44 : 212,435.62 = 85,973.19 : x - Step 2: Convert to fraction form
153,952.44/212,435.62 = 85,973.19/x - Step 3: Cross multiply
153,952.44x = 212,435.62 × 85,973.19 - Step 4: Simplify right side
153,952.44x = 18,263,767,921.03 - Step 5: Solve for x
x = 18,263,767,921.03/153,952.44 - Step 6: Final answer
x = 118,632.53
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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.