Finding the Fourth Proportional to 112,258.08, 154,916.10 and 61,957.08
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Solution
The fourth proportional to 112,258.08, 154,916.10 and 61,957.08 is: 85,500.74
Step by Step Solution
- Step 1: Write the proportion equation
112,258.08 : 154,916.10 = 61,957.08 : x - Step 2: Convert to fraction form
112,258.08/154,916.10 = 61,957.08/x - Step 3: Cross multiply
112,258.08x = 154,916.10 × 61,957.08 - Step 4: Simplify right side
112,258.08x = 9,598,149,200.99 - Step 5: Solve for x
x = 9,598,149,200.99/112,258.08 - Step 6: Final answer
x = 85,500.74
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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.