Finding the Fourth Proportional to 103,110.96, 142,294.80 and 57,799.02
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Solution
The fourth proportional to 103,110.96, 142,294.80 and 57,799.02 is: 79,763.59
Step by Step Solution
- Step 1: Write the proportion equation
103,110.96 : 142,294.80 = 57,799.02 : x - Step 2: Convert to fraction form
103,110.96/142,294.80 = 57,799.02/x - Step 3: Cross multiply
103,110.96x = 142,294.80 × 57,799.02 - Step 4: Simplify right side
103,110.96x = 8,224,499,991.10 - Step 5: Solve for x
x = 8,224,499,991.10/103,110.96 - Step 6: Final answer
x = 79,763.59
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1.5x scale
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.