Finding the Fourth Proportional to 157,684.66, 217,603.26 and 86,064.05
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Solution
The fourth proportional to 157,684.66, 217,603.26 and 86,064.05 is: 118,767.54
Step by Step Solution
- Step 1: Write the proportion equation
157,684.66 : 217,603.26 = 86,064.05 : x - Step 2: Convert to fraction form
157,684.66/217,603.26 = 86,064.05/x - Step 3: Cross multiply
157,684.66x = 217,603.26 × 86,064.05 - Step 4: Simplify right side
157,684.66x = 18,727,818,392.81 - Step 5: Solve for x
x = 18,727,818,392.81/157,684.66 - Step 6: Final answer
x = 118,767.54
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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.