Finding the Fourth Proportional to 134,569.60, 201,611.40 and 78,363.70
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Solution
The fourth proportional to 134,569.60, 201,611.40 and 78,363.70 is: 117,404.04
Step by Step Solution
- Step 1: Write the proportion equation
134,569.60 : 201,611.40 = 78,363.70 : x - Step 2: Convert to fraction form
134,569.60/201,611.40 = 78,363.70/x - Step 3: Cross multiply
134,569.60x = 201,611.40 × 78,363.70 - Step 4: Simplify right side
134,569.60x = 15,799,015,266.18 - Step 5: Solve for x
x = 15,799,015,266.18/134,569.60 - Step 6: Final answer
x = 117,404.04
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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.