Finding the Fourth Proportional to 156,816.17, 235,188.79 and 72,530.09
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Solution
The fourth proportional to 156,816.17, 235,188.79 and 72,530.09 is: 108,778.72
Step by Step Solution
- Step 1: Write the proportion equation
156,816.17 : 235,188.79 = 72,530.09 : x - Step 2: Convert to fraction form
156,816.17/235,188.79 = 72,530.09/x - Step 3: Cross multiply
156,816.17x = 235,188.79 × 72,530.09 - Step 4: Simplify right side
156,816.17x = 17,058,262,929.75 - Step 5: Solve for x
x = 17,058,262,929.75/156,816.17 - Step 6: Final answer
x = 108,778.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.