Finding the Fourth Proportional to 133,686.28, 184,454.58 and 74,070.28
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Solution
The fourth proportional to 133,686.28, 184,454.58 and 74,070.28 is: 102,198.99
Step by Step Solution
- Step 1: Write the proportion equation
133,686.28 : 184,454.58 = 74,070.28 : x - Step 2: Convert to fraction form
133,686.28/184,454.58 = 74,070.28/x - Step 3: Cross multiply
133,686.28x = 184,454.58 × 74,070.28 - Step 4: Simplify right side
133,686.28x = 13,662,602,387.88 - Step 5: Solve for x
x = 13,662,602,387.88/133,686.28 - Step 6: Final answer
x = 102,198.99
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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.