Finding the Fourth Proportional to 121,157.84, 167,186.76 and 70,848.08
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Solution
The fourth proportional to 121,157.84, 167,186.76 and 70,848.08 is: 97,763.88
Step by Step Solution
- Step 1: Write the proportion equation
121,157.84 : 167,186.76 = 70,848.08 : x - Step 2: Convert to fraction form
121,157.84/167,186.76 = 70,848.08/x - Step 3: Cross multiply
121,157.84x = 167,186.76 × 70,848.08 - Step 4: Simplify right side
121,157.84x = 11,844,860,947.42 - Step 5: Solve for x
x = 11,844,860,947.42/121,157.84 - Step 6: Final answer
x = 97,763.88
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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.