Finding the Fourth Proportional to 107,289.08, 148,024.68 and 61,961.08
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Solution
The fourth proportional to 107,289.08, 148,024.68 and 61,961.08 is: 85,486.51
Step by Step Solution
- Step 1: Write the proportion equation
107,289.08 : 148,024.68 = 61,961.08 : x - Step 2: Convert to fraction form
107,289.08/148,024.68 = 61,961.08/x - Step 3: Cross multiply
107,289.08x = 148,024.68 × 61,961.08 - Step 4: Simplify right side
107,289.08x = 9,171,769,039.45 - Step 5: Solve for x
x = 9,171,769,039.45/107,289.08 - Step 6: Final answer
x = 85,486.51
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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.