Finding the Fourth Proportional to 107,810.30, 161,715.45 and 97,312.70
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Solution
The fourth proportional to 107,810.30, 161,715.45 and 97,312.70 is: 145,969.05
Step by Step Solution
- Step 1: Write the proportion equation
107,810.30 : 161,715.45 = 97,312.70 : x - Step 2: Convert to fraction form
107,810.30/161,715.45 = 97,312.70/x - Step 3: Cross multiply
107,810.30x = 161,715.45 × 97,312.70 - Step 4: Simplify right side
107,810.30x = 15,736,967,071.22 - Step 5: Solve for x
x = 15,736,967,071.22/107,810.30 - Step 6: Final answer
x = 145,969.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.