Finding the Fourth Proportional to 145,893.40, 201,348.84 and 84,653.04
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Solution
The fourth proportional to 145,893.40, 201,348.84 and 84,653.04 is: 116,830.45
Step by Step Solution
- Step 1: Write the proportion equation
145,893.40 : 201,348.84 = 84,653.04 : x - Step 2: Convert to fraction form
145,893.40/201,348.84 = 84,653.04/x - Step 3: Cross multiply
145,893.40x = 201,348.84 × 84,653.04 - Step 4: Simplify right side
145,893.40x = 17,044,791,406.47 - Step 5: Solve for x
x = 17,044,791,406.47/145,893.40 - Step 6: Final answer
x = 116,830.45
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1.5x scale
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.