Finding the Fourth Proportional to 139,612.95, 209,420.64 and 39,773.03
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Solution
The fourth proportional to 139,612.95, 209,420.64 and 39,773.03 is: 59,659.88
Step by Step Solution
- Step 1: Write the proportion equation
139,612.95 : 209,420.64 = 39,773.03 : x - Step 2: Convert to fraction form
139,612.95/209,420.64 = 39,773.03/x - Step 3: Cross multiply
139,612.95x = 209,420.64 × 39,773.03 - Step 4: Simplify right side
139,612.95x = 8,329,292,350.24 - Step 5: Solve for x
x = 8,329,292,350.24/139,612.95 - Step 6: Final answer
x = 59,659.88
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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.