Finding the Fourth Proportional to 99,756.52, 149,702.54 and 40,602.94
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Solution
The fourth proportional to 99,756.52, 149,702.54 and 40,602.94 is: 60,931.99
Step by Step Solution
- Step 1: Write the proportion equation
99,756.52 : 149,702.54 = 40,602.94 : x - Step 2: Convert to fraction form
99,756.52/149,702.54 = 40,602.94/x - Step 3: Cross multiply
99,756.52x = 149,702.54 × 40,602.94 - Step 4: Simplify right side
99,756.52x = 6,078,363,249.47 - Step 5: Solve for x
x = 6,078,363,249.47/99,756.52 - Step 6: Final answer
x = 60,931.99
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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.