Finding the Fourth Proportional to 103,372.80, 142,594.56 and 69,780.48
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Solution
The fourth proportional to 103,372.80, 142,594.56 and 69,780.48 is: 96,256.62
Step by Step Solution
- Step 1: Write the proportion equation
103,372.80 : 142,594.56 = 69,780.48 : x - Step 2: Convert to fraction form
103,372.80/142,594.56 = 69,780.48/x - Step 3: Cross multiply
103,372.80x = 142,594.56 × 69,780.48 - Step 4: Simplify right side
103,372.80x = 9,950,316,842.19 - Step 5: Solve for x
x = 9,950,316,842.19/103,372.80 - Step 6: Final answer
x = 96,256.62
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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.