Finding the Fourth Proportional to 107,187.30, 147,985.35 and 69,013.02
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Solution
The fourth proportional to 107,187.30, 147,985.35 and 69,013.02 is: 95,281.03
Step by Step Solution
- Step 1: Write the proportion equation
107,187.30 : 147,985.35 = 69,013.02 : x - Step 2: Convert to fraction form
107,187.30/147,985.35 = 69,013.02/x - Step 3: Cross multiply
107,187.30x = 147,985.35 × 69,013.02 - Step 4: Simplify right side
107,187.30x = 10,212,915,919.26 - Step 5: Solve for x
x = 10,212,915,919.26/107,187.30 - Step 6: Final answer
x = 95,281.03
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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.