Finding the Fourth Proportional to 143,155.69, 214,666.07 and 53,136.02
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Solution
The fourth proportional to 143,155.69, 214,666.07 and 53,136.02 is: 79,678.99
Step by Step Solution
- Step 1: Write the proportion equation
143,155.69 : 214,666.07 = 53,136.02 : x - Step 2: Convert to fraction form
143,155.69/214,666.07 = 53,136.02/x - Step 3: Cross multiply
143,155.69x = 214,666.07 × 53,136.02 - Step 4: Simplify right side
143,155.69x = 11,406,500,588.84 - Step 5: Solve for x
x = 11,406,500,588.84/143,155.69 - Step 6: Final answer
x = 79,678.99
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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.