Finding the Fourth Proportional to 157,048.50, 235,648.35 and 78,169.62
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Solution
The fourth proportional to 157,048.50, 235,648.35 and 78,169.62 is: 117,292.06
Step by Step Solution
- Step 1: Write the proportion equation
157,048.50 : 235,648.35 = 78,169.62 : x - Step 2: Convert to fraction form
157,048.50/235,648.35 = 78,169.62/x - Step 3: Cross multiply
157,048.50x = 235,648.35 × 78,169.62 - Step 4: Simplify right side
157,048.50x = 18,420,541,973.13 - Step 5: Solve for x
x = 18,420,541,973.13/157,048.50 - Step 6: Final answer
x = 117,292.06
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.