Finding the Fourth Proportional to 157,139.52, 235,703.60 and 68,393.08
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Solution
The fourth proportional to 157,139.52, 235,703.60 and 68,393.08 is: 102,587.15
Step by Step Solution
- Step 1: Write the proportion equation
157,139.52 : 235,703.60 = 68,393.08 : x - Step 2: Convert to fraction form
157,139.52/235,703.60 = 68,393.08/x - Step 3: Cross multiply
157,139.52x = 235,703.60 × 68,393.08 - Step 4: Simplify right side
157,139.52x = 16,120,495,171.09 - Step 5: Solve for x
x = 16,120,495,171.09/157,139.52 - Step 6: Final answer
x = 102,587.15
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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.