Finding the Fourth Proportional to 156,935.80, 216,368.12 and 101,646.75
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Solution
The fourth proportional to 156,935.80, 216,368.12 and 101,646.75 is: 140,140.84
Step by Step Solution
- Step 1: Write the proportion equation
156,935.80 : 216,368.12 = 101,646.75 : x - Step 2: Convert to fraction form
156,935.80/216,368.12 = 101,646.75/x - Step 3: Cross multiply
156,935.80x = 216,368.12 × 101,646.75 - Step 4: Simplify right side
156,935.80x = 21,993,114,611.54 - Step 5: Solve for x
x = 21,993,114,611.54/156,935.80 - Step 6: Final answer
x = 140,140.84
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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.