Finding the Fourth Proportional to 153,099.13, 211,283.99 and 85,117.22
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Solution
The fourth proportional to 153,099.13, 211,283.99 and 85,117.22 is: 117,465.76
Step by Step Solution
- Step 1: Write the proportion equation
153,099.13 : 211,283.99 = 85,117.22 : x - Step 2: Convert to fraction form
153,099.13/211,283.99 = 85,117.22/x - Step 3: Cross multiply
153,099.13x = 211,283.99 × 85,117.22 - Step 4: Simplify right side
153,099.13x = 17,983,905,859.31 - Step 5: Solve for x
x = 17,983,905,859.31/153,099.13 - Step 6: Final answer
x = 117,465.76
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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.