Finding the Fourth Proportional to 118,890.75, 163,937.47 and 75,801.99
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Solution
The fourth proportional to 118,890.75, 163,937.47 and 75,801.99 is: 104,522.73
Step by Step Solution
- Step 1: Write the proportion equation
118,890.75 : 163,937.47 = 75,801.99 : x - Step 2: Convert to fraction form
118,890.75/163,937.47 = 75,801.99/x - Step 3: Cross multiply
118,890.75x = 163,937.47 × 75,801.99 - Step 4: Simplify right side
118,890.75x = 12,426,786,082.56 - Step 5: Solve for x
x = 12,426,786,082.56/118,890.75 - Step 6: Final answer
x = 104,522.73
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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.