Finding the Fourth Proportional to 145,257.04, 200,478.68 and 84,827.19
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Solution
The fourth proportional to 145,257.04, 200,478.68 and 84,827.19 is: 117,075.52
Step by Step Solution
- Step 1: Write the proportion equation
145,257.04 : 200,478.68 = 84,827.19 : x - Step 2: Convert to fraction form
145,257.04/200,478.68 = 84,827.19/x - Step 3: Cross multiply
145,257.04x = 200,478.68 × 84,827.19 - Step 4: Simplify right side
145,257.04x = 17,006,043,079.31 - Step 5: Solve for x
x = 17,006,043,079.31/145,257.04 - Step 6: Final answer
x = 117,075.52
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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.