Finding the Fourth Proportional to 157,603.95, 217,484.55 and 89,637.44
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Solution
The fourth proportional to 157,603.95, 217,484.55 and 89,637.44 is: 123,694.60
Step by Step Solution
- Step 1: Write the proportion equation
157,603.95 : 217,484.55 = 89,637.44 : x - Step 2: Convert to fraction form
157,603.95/217,484.55 = 89,637.44/x - Step 3: Cross multiply
157,603.95x = 217,484.55 × 89,637.44 - Step 4: Simplify right side
157,603.95x = 19,494,757,214.13 - Step 5: Solve for x
x = 19,494,757,214.13/157,603.95 - Step 6: Final answer
x = 123,694.60
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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.