Finding the Fourth Proportional to 124,369.56, 171,657.68 and 79,038.69
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Solution
The fourth proportional to 124,369.56, 171,657.68 and 79,038.69 is: 109,090.99
Step by Step Solution
- Step 1: Write the proportion equation
124,369.56 : 171,657.68 = 79,038.69 : x - Step 2: Convert to fraction form
124,369.56/171,657.68 = 79,038.69/x - Step 3: Cross multiply
124,369.56x = 171,657.68 × 79,038.69 - Step 4: Simplify right side
124,369.56x = 13,567,598,155.64 - Step 5: Solve for x
x = 13,567,598,155.64/124,369.56 - Step 6: Final answer
x = 109,090.99
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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.