Finding the Fourth Proportional to 108,636.78, 162,211.98 and 97,319.07
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Solution
The fourth proportional to 108,636.78, 162,211.98 and 97,319.07 is: 145,312.84
Step by Step Solution
- Step 1: Write the proportion equation
108,636.78 : 162,211.98 = 97,319.07 : x - Step 2: Convert to fraction form
108,636.78/162,211.98 = 97,319.07/x - Step 3: Cross multiply
108,636.78x = 162,211.98 × 97,319.07 - Step 4: Simplify right side
108,636.78x = 15,786,319,036.46 - Step 5: Solve for x
x = 15,786,319,036.46/108,636.78 - Step 6: Final answer
x = 145,312.84
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.