Finding the Fourth Proportional to 148,679.80, 205,348.52 and 97,919.40
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Solution
The fourth proportional to 148,679.80, 205,348.52 and 97,919.40 is: 135,240.99
Step by Step Solution
- Step 1: Write the proportion equation
148,679.80 : 205,348.52 = 97,919.40 : x - Step 2: Convert to fraction form
148,679.80/205,348.52 = 97,919.40/x - Step 3: Cross multiply
148,679.80x = 205,348.52 × 97,919.40 - Step 4: Simplify right side
148,679.80x = 20,107,603,869.29 - Step 5: Solve for x
x = 20,107,603,869.29/148,679.80 - Step 6: Final answer
x = 135,240.99
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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.