Finding the Fourth Proportional to 155,136.03, 214,064.40 and 87,139.98
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Solution
The fourth proportional to 155,136.03, 214,064.40 and 87,139.98 is: 120,240.07
Step by Step Solution
- Step 1: Write the proportion equation
155,136.03 : 214,064.40 = 87,139.98 : x - Step 2: Convert to fraction form
155,136.03/214,064.40 = 87,139.98/x - Step 3: Cross multiply
155,136.03x = 214,064.40 × 87,139.98 - Step 4: Simplify right side
155,136.03x = 18,653,567,534.71 - Step 5: Solve for x
x = 18,653,567,534.71/155,136.03 - Step 6: Final answer
x = 120,240.07
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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.