Finding the Fourth Proportional to 112,202.13, 154,838.93 and 61,901.13
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Solution
The fourth proportional to 112,202.13, 154,838.93 and 61,901.13 is: 85,423.55
Step by Step Solution
- Step 1: Write the proportion equation
112,202.13 : 154,838.93 = 61,901.13 : x - Step 2: Convert to fraction form
112,202.13/154,838.93 = 61,901.13/x - Step 3: Cross multiply
112,202.13x = 154,838.93 × 61,901.13 - Step 4: Simplify right side
112,202.13x = 9,584,704,734.99 - Step 5: Solve for x
x = 9,584,704,734.99/112,202.13 - Step 6: Final answer
x = 85,423.55
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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.