Finding the Fourth Proportional to 156,731.24, 235,136.64 and 72,552.08
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Solution
The fourth proportional to 156,731.24, 235,136.64 and 72,552.08 is: 108,846.53
Step by Step Solution
- Step 1: Write the proportion equation
156,731.24 : 235,136.64 = 72,552.08 : x - Step 2: Convert to fraction form
156,731.24/235,136.64 = 72,552.08/x - Step 3: Cross multiply
156,731.24x = 235,136.64 × 72,552.08 - Step 4: Simplify right side
156,731.24x = 17,059,652,316.21 - Step 5: Solve for x
x = 17,059,652,316.21/156,731.24 - Step 6: Final answer
x = 108,846.53
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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.