Finding the Fourth Proportional to 69,102.08, 103,655.28 and 19,182.68
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Solution
The fourth proportional to 69,102.08, 103,655.28 and 19,182.68 is: 28,774.62
Step by Step Solution
- Step 1: Write the proportion equation
69,102.08 : 103,655.28 = 19,182.68 : x - Step 2: Convert to fraction form
69,102.08/103,655.28 = 19,182.68/x - Step 3: Cross multiply
69,102.08x = 103,655.28 × 19,182.68 - Step 4: Simplify right side
69,102.08x = 1,988,386,066.55 - Step 5: Solve for x
x = 1,988,386,066.55/69,102.08 - Step 6: Final answer
x = 28,774.62
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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.