Finding the Fourth Proportional to 152,652.05, 210,670.04 and 84,690.62
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Solution
The fourth proportional to 152,652.05, 210,670.04 and 84,690.62 is: 116,878.72
Step by Step Solution
- Step 1: Write the proportion equation
152,652.05 : 210,670.04 = 84,690.62 : x - Step 2: Convert to fraction form
152,652.05/210,670.04 = 84,690.62/x - Step 3: Cross multiply
152,652.05x = 210,670.04 × 84,690.62 - Step 4: Simplify right side
152,652.05x = 17,841,775,879.57 - Step 5: Solve for x
x = 17,841,775,879.57/152,652.05 - Step 6: Final answer
x = 116,878.72
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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.