Finding the Fourth Proportional to 157,659.39, 217,569.93 and 101,070.75
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Solution
The fourth proportional to 157,659.39, 217,569.93 and 101,070.75 is: 139,477.62
Step by Step Solution
- Step 1: Write the proportion equation
157,659.39 : 217,569.93 = 101,070.75 : x - Step 2: Convert to fraction form
157,659.39/217,569.93 = 101,070.75/x - Step 3: Cross multiply
157,659.39x = 217,569.93 × 101,070.75 - Step 4: Simplify right side
157,659.39x = 21,989,956,002.55 - Step 5: Solve for x
x = 21,989,956,002.55/157,659.39 - Step 6: Final answer
x = 139,477.62
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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.