Finding the Fourth Proportional to 116,984.68, 161,364.54 and 76,701.07
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Solution
The fourth proportional to 116,984.68, 161,364.54 and 76,701.07 is: 105,798.75
Step by Step Solution
- Step 1: Write the proportion equation
116,984.68 : 161,364.54 = 76,701.07 : x - Step 2: Convert to fraction form
116,984.68/161,364.54 = 76,701.07/x - Step 3: Cross multiply
116,984.68x = 161,364.54 × 76,701.07 - Step 4: Simplify right side
116,984.68x = 12,376,832,878.06 - Step 5: Solve for x
x = 12,376,832,878.06/116,984.68 - Step 6: Final answer
x = 105,798.75
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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.