Finding the Fourth Proportional to 103,354.76, 142,620.84 and 62,534.09
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Solution
The fourth proportional to 103,354.76, 142,620.84 and 62,534.09 is: 86,291.76
Step by Step Solution
- Step 1: Write the proportion equation
103,354.76 : 142,620.84 = 62,534.09 : x - Step 2: Convert to fraction form
103,354.76/142,620.84 = 62,534.09/x - Step 3: Cross multiply
103,354.76x = 142,620.84 × 62,534.09 - Step 4: Simplify right side
103,354.76x = 8,918,663,731.33 - Step 5: Solve for x
x = 8,918,663,731.33/103,354.76 - Step 6: Final answer
x = 86,291.76
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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.