Finding the Fourth Proportional to 156,781.78, 235,122.99 and 51,576.28
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Solution
The fourth proportional to 156,781.78, 235,122.99 and 51,576.28 is: 77,348.08
Step by Step Solution
- Step 1: Write the proportion equation
156,781.78 : 235,122.99 = 51,576.28 : x - Step 2: Convert to fraction form
156,781.78/235,122.99 = 51,576.28/x - Step 3: Cross multiply
156,781.78x = 235,122.99 × 51,576.28 - Step 4: Simplify right side
156,781.78x = 12,126,769,166.68 - Step 5: Solve for x
x = 12,126,769,166.68/156,781.78 - Step 6: Final answer
x = 77,348.08
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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.