Finding the Fourth Proportional to 77,157.22, 115,547.08 and 69,677.68
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Solution
The fourth proportional to 77,157.22, 115,547.08 and 69,677.68 is: 104,346.07
Step by Step Solution
- Step 1: Write the proportion equation
77,157.22 : 115,547.08 = 69,677.68 : x - Step 2: Convert to fraction form
77,157.22/115,547.08 = 69,677.68/x - Step 3: Cross multiply
77,157.22x = 115,547.08 × 69,677.68 - Step 4: Simplify right side
77,157.22x = 8,051,052,465.17 - Step 5: Solve for x
x = 8,051,052,465.17/77,157.22 - Step 6: Final answer
x = 104,346.07
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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.