Finding the Fourth Proportional to 157,386.09, 217,226.34 and 103,675.80
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Solution
The fourth proportional to 157,386.09, 217,226.34 and 103,675.80 is: 143,094.70
Step by Step Solution
- Step 1: Write the proportion equation
157,386.09 : 217,226.34 = 103,675.80 : x - Step 2: Convert to fraction form
157,386.09/217,226.34 = 103,675.80/x - Step 3: Cross multiply
157,386.09x = 217,226.34 × 103,675.80 - Step 4: Simplify right side
157,386.09x = 22,521,114,580.57 - Step 5: Solve for x
x = 22,521,114,580.57/157,386.09 - Step 6: Final answer
x = 143,094.70
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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.