Finding the Fourth Proportional to 155,134.17, 214,070.04 and 87,135.75
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Solution
The fourth proportional to 155,134.17, 214,070.04 and 87,135.75 is: 120,238.85
Step by Step Solution
- Step 1: Write the proportion equation
155,134.17 : 214,070.04 = 87,135.75 : x - Step 2: Convert to fraction form
155,134.17/214,070.04 = 87,135.75/x - Step 3: Cross multiply
155,134.17x = 214,070.04 × 87,135.75 - Step 4: Simplify right side
155,134.17x = 18,653,153,487.93 - Step 5: Solve for x
x = 18,653,153,487.93/155,134.17 - Step 6: Final answer
x = 120,238.85
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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.