Finding the Fourth Proportional to 156,992.10, 216,572.93 and 93,284.79
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Solution
The fourth proportional to 156,992.10, 216,572.93 and 93,284.79 is: 128,687.75
Step by Step Solution
- Step 1: Write the proportion equation
156,992.10 : 216,572.93 = 93,284.79 : x - Step 2: Convert to fraction form
156,992.10/216,572.93 = 93,284.79/x - Step 3: Cross multiply
156,992.10x = 216,572.93 × 93,284.79 - Step 4: Simplify right side
156,992.10x = 20,202,959,828.31 - Step 5: Solve for x
x = 20,202,959,828.31/156,992.10 - Step 6: Final answer
x = 128,687.75
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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.