Finding the Fourth Proportional to 117,070.08, 161,546.52 and 68,681.76
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Solution
The fourth proportional to 117,070.08, 161,546.52 and 68,681.76 is: 94,774.85
Step by Step Solution
- Step 1: Write the proportion equation
117,070.08 : 161,546.52 = 68,681.76 : x - Step 2: Convert to fraction form
117,070.08/161,546.52 = 68,681.76/x - Step 3: Cross multiply
117,070.08x = 161,546.52 × 68,681.76 - Step 4: Simplify right side
117,070.08x = 11,095,299,315.48 - Step 5: Solve for x
x = 11,095,299,315.48/117,070.08 - Step 6: Final answer
x = 94,774.85
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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.