Finding the Fourth Proportional to 155,968.74, 215,237.50 and 84,348.76
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Solution
The fourth proportional to 155,968.74, 215,237.50 and 84,348.76 is: 116,401.63
Step by Step Solution
- Step 1: Write the proportion equation
155,968.74 : 215,237.50 = 84,348.76 : x - Step 2: Convert to fraction form
155,968.74/215,237.50 = 84,348.76/x - Step 3: Cross multiply
155,968.74x = 215,237.50 × 84,348.76 - Step 4: Simplify right side
155,968.74x = 18,155,015,154.31 - Step 5: Solve for x
x = 18,155,015,154.31/155,968.74 - Step 6: Final answer
x = 116,401.63
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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.