Finding the Fourth Proportional to 97,143.75, 134,058.78 and 54,702.99
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Solution
The fourth proportional to 97,143.75, 134,058.78 and 54,702.99 is: 75,490.35
Step by Step Solution
- Step 1: Write the proportion equation
97,143.75 : 134,058.78 = 54,702.99 : x - Step 2: Convert to fraction form
97,143.75/134,058.78 = 54,702.99/x - Step 3: Cross multiply
97,143.75x = 134,058.78 × 54,702.99 - Step 4: Simplify right side
97,143.75x = 7,333,416,101.75 - Step 5: Solve for x
x = 7,333,416,101.75/97,143.75 - Step 6: Final answer
x = 75,490.35
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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.