Finding the Fourth Proportional to 188,971.98, 260,781.68 and 102,930.69
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Solution
The fourth proportional to 188,971.98, 260,781.68 and 102,930.69 is: 142,044.54
Step by Step Solution
- Step 1: Write the proportion equation
188,971.98 : 260,781.68 = 102,930.69 : x - Step 2: Convert to fraction form
188,971.98/260,781.68 = 102,930.69/x - Step 3: Cross multiply
188,971.98x = 260,781.68 × 102,930.69 - Step 4: Simplify right side
188,971.98x = 26,842,438,261.76 - Step 5: Solve for x
x = 26,842,438,261.76/188,971.98 - Step 6: Final answer
x = 142,044.54
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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.