Finding the Fourth Proportional to 155,746.68, 214,930.43 and 84,126.70
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Solution
The fourth proportional to 155,746.68, 214,930.43 and 84,126.70 is: 116,094.85
Step by Step Solution
- Step 1: Write the proportion equation
155,746.68 : 214,930.43 = 84,126.70 : x - Step 2: Convert to fraction form
155,746.68/214,930.43 = 84,126.70/x - Step 3: Cross multiply
155,746.68x = 214,930.43 × 84,126.70 - Step 4: Simplify right side
155,746.68x = 18,081,387,805.48 - Step 5: Solve for x
x = 18,081,387,805.48/155,746.68 - Step 6: Final answer
x = 116,094.85
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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.