Finding the Fourth Proportional to 145,909.08, 201,354.66 and 78,841.08
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Solution
The fourth proportional to 145,909.08, 201,354.66 and 78,841.08 is: 108,800.76
Step by Step Solution
- Step 1: Write the proportion equation
145,909.08 : 201,354.66 = 78,841.08 : x - Step 2: Convert to fraction form
145,909.08/201,354.66 = 78,841.08/x - Step 3: Cross multiply
145,909.08x = 201,354.66 × 78,841.08 - Step 4: Simplify right side
145,909.08x = 15,875,018,857.43 - Step 5: Solve for x
x = 15,875,018,857.43/145,909.08 - Step 6: Final answer
x = 108,800.76
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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.