Finding the Fourth Proportional to 122,459.95, 168,985.54 and 68,734.68
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Solution
The fourth proportional to 122,459.95, 168,985.54 and 68,734.68 is: 94,848.69
Step by Step Solution
- Step 1: Write the proportion equation
122,459.95 : 168,985.54 = 68,734.68 : x - Step 2: Convert to fraction form
122,459.95/168,985.54 = 68,734.68/x - Step 3: Cross multiply
122,459.95x = 168,985.54 × 68,734.68 - Step 4: Simplify right side
122,459.95x = 11,615,166,468.75 - Step 5: Solve for x
x = 11,615,166,468.75/122,459.95 - Step 6: Final answer
x = 94,848.69
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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.