Finding the Fourth Proportional to 157,312.18, 217,106.09 and 96,923.44
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Solution
The fourth proportional to 157,312.18, 217,106.09 and 96,923.44 is: 133,763.76
Step by Step Solution
- Step 1: Write the proportion equation
157,312.18 : 217,106.09 = 96,923.44 : x - Step 2: Convert to fraction form
157,312.18/217,106.09 = 96,923.44/x - Step 3: Cross multiply
157,312.18x = 217,106.09 × 96,923.44 - Step 4: Simplify right side
157,312.18x = 21,042,668,603.13 - Step 5: Solve for x
x = 21,042,668,603.13/157,312.18 - Step 6: Final answer
x = 133,763.76
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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.