Finding the Fourth Proportional to 148,762.08, 205,296.40 and 81,694.08
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Solution
The fourth proportional to 148,762.08, 205,296.40 and 81,694.08 is: 112,740.43
Step by Step Solution
- Step 1: Write the proportion equation
148,762.08 : 205,296.40 = 81,694.08 : x - Step 2: Convert to fraction form
148,762.08/205,296.40 = 81,694.08/x - Step 3: Cross multiply
148,762.08x = 205,296.40 × 81,694.08 - Step 4: Simplify right side
148,762.08x = 16,771,500,525.31 - Step 5: Solve for x
x = 16,771,500,525.31/148,762.08 - Step 6: Final answer
x = 112,740.43
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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.