Finding the Fourth Proportional to 156,901.05, 216,506.93 and 93,230.19
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Solution
The fourth proportional to 156,901.05, 216,506.93 and 93,230.19 is: 128,647.84
Step by Step Solution
- Step 1: Write the proportion equation
156,901.05 : 216,506.93 = 93,230.19 : x - Step 2: Convert to fraction form
156,901.05/216,506.93 = 93,230.19/x - Step 3: Cross multiply
156,901.05x = 216,506.93 × 93,230.19 - Step 4: Simplify right side
156,901.05x = 20,184,981,754.07 - Step 5: Solve for x
x = 20,184,981,754.07/156,901.05 - Step 6: Final answer
x = 128,647.84
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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.