Finding the Fourth Proportional to 103,522.19, 142,865.69 and 58,214.44
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Solution
The fourth proportional to 103,522.19, 142,865.69 and 58,214.44 is: 80,338.77
Step by Step Solution
- Step 1: Write the proportion equation
103,522.19 : 142,865.69 = 58,214.44 : x - Step 2: Convert to fraction form
103,522.19/142,865.69 = 58,214.44/x - Step 3: Cross multiply
103,522.19x = 142,865.69 × 58,214.44 - Step 4: Simplify right side
103,522.19x = 8,316,845,424.24 - Step 5: Solve for x
x = 8,316,845,424.24/103,522.19 - Step 6: Final answer
x = 80,338.77
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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.