Finding the Fourth Proportional to 157,688.29, 217,638.05 and 94,030.19
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Solution
The fourth proportional to 157,688.29, 217,638.05 and 94,030.19 is: 129,778.48
Step by Step Solution
- Step 1: Write the proportion equation
157,688.29 : 217,638.05 = 94,030.19 : x - Step 2: Convert to fraction form
157,688.29/217,638.05 = 94,030.19/x - Step 3: Cross multiply
157,688.29x = 217,638.05 × 94,030.19 - Step 4: Simplify right side
157,688.29x = 20,464,547,192.73 - Step 5: Solve for x
x = 20,464,547,192.73/157,688.29 - Step 6: Final answer
x = 129,778.48
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1.5x scale
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.