Finding the Fourth Proportional to 115,069.60, 158,781.36 and 64,758.88
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Solution
The fourth proportional to 115,069.60, 158,781.36 and 64,758.88 is: 89,358.99
Step by Step Solution
- Step 1: Write the proportion equation
115,069.60 : 158,781.36 = 64,758.88 : x - Step 2: Convert to fraction form
115,069.60/158,781.36 = 64,758.88/x - Step 3: Cross multiply
115,069.60x = 158,781.36 × 64,758.88 - Step 4: Simplify right side
115,069.60x = 10,282,503,038.48 - Step 5: Solve for x
x = 10,282,503,038.48/115,069.60 - Step 6: Final answer
x = 89,358.99
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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.