Finding the Fourth Proportional to 153,584.74, 211,947.99 and 85,606.09
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Solution
The fourth proportional to 153,584.74, 211,947.99 and 85,606.09 is: 118,136.98
Step by Step Solution
- Step 1: Write the proportion equation
153,584.74 : 211,947.99 = 85,606.09 : x - Step 2: Convert to fraction form
153,584.74/211,947.99 = 85,606.09/x - Step 3: Cross multiply
153,584.74x = 211,947.99 × 85,606.09 - Step 4: Simplify right side
153,584.74x = 18,144,037,219.49 - Step 5: Solve for x
x = 18,144,037,219.49/153,584.74 - Step 6: Final answer
x = 118,136.98
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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.