Finding the Fourth Proportional to 117,317.53, 162,031.84 and 79,526.17
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Solution
The fourth proportional to 117,317.53, 162,031.84 and 79,526.17 is: 109,836.71
Step by Step Solution
- Step 1: Write the proportion equation
117,317.53 : 162,031.84 = 79,526.17 : x - Step 2: Convert to fraction form
117,317.53/162,031.84 = 79,526.17/x - Step 3: Cross multiply
117,317.53x = 162,031.84 × 79,526.17 - Step 4: Simplify right side
117,317.53x = 12,885,772,104.31 - Step 5: Solve for x
x = 12,885,772,104.31/117,317.53 - Step 6: Final answer
x = 109,836.71
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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.