Finding the Fourth Proportional to 97,740.32, 134,540.80 and 84,354.08
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Solution
The fourth proportional to 97,740.32, 134,540.80 and 84,354.08 is: 116,114.47
Step by Step Solution
- Step 1: Write the proportion equation
97,740.32 : 134,540.80 = 84,354.08 : x - Step 2: Convert to fraction form
97,740.32/134,540.80 = 84,354.08/x - Step 3: Cross multiply
97,740.32x = 134,540.80 × 84,354.08 - Step 4: Simplify right side
97,740.32x = 11,349,065,406.46 - Step 5: Solve for x
x = 11,349,065,406.46/97,740.32 - Step 6: Final answer
x = 116,114.47
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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.