Finding the Fourth Proportional to 157,247.80, 235,871.70 and 104,759.80
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Solution
The fourth proportional to 157,247.80, 235,871.70 and 104,759.80 is: 157,139.70
Step by Step Solution
- Step 1: Write the proportion equation
157,247.80 : 235,871.70 = 104,759.80 : x - Step 2: Convert to fraction form
157,247.80/235,871.70 = 104,759.80/x - Step 3: Cross multiply
157,247.80x = 235,871.70 × 104,759.80 - Step 4: Simplify right side
157,247.80x = 24,709,872,117.66 - Step 5: Solve for x
x = 24,709,872,117.66/157,247.80 - Step 6: Final answer
x = 157,139.70
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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.