Finding the Fourth Proportional to 138,024.08, 190,472.09 and 77,594.99
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Solution
The fourth proportional to 138,024.08, 190,472.09 and 77,594.99 is: 107,080.45
Step by Step Solution
- Step 1: Write the proportion equation
138,024.08 : 190,472.09 = 77,594.99 : x - Step 2: Convert to fraction form
138,024.08/190,472.09 = 77,594.99/x - Step 3: Cross multiply
138,024.08x = 190,472.09 × 77,594.99 - Step 4: Simplify right side
138,024.08x = 14,779,679,878.02 - Step 5: Solve for x
x = 14,779,679,878.02/138,024.08 - Step 6: Final answer
x = 107,080.45
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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.