Finding the Fourth Proportional to 145,110.90, 217,666.35 and 39,929.70
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Solution
The fourth proportional to 145,110.90, 217,666.35 and 39,929.70 is: 59,894.55
Step by Step Solution
- Step 1: Write the proportion equation
145,110.90 : 217,666.35 = 39,929.70 : x - Step 2: Convert to fraction form
145,110.90/217,666.35 = 39,929.70/x - Step 3: Cross multiply
145,110.90x = 217,666.35 × 39,929.70 - Step 4: Simplify right side
145,110.90x = 8,691,352,055.60 - Step 5: Solve for x
x = 8,691,352,055.60/145,110.90 - Step 6: Final answer
x = 59,894.55
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1.5x scale
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.