Finding the Fourth Proportional to 141,829.20, 212,484.60 and 115,390.80
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Solution
The fourth proportional to 141,829.20, 212,484.60 and 115,390.80 is: 172,875.32
Step by Step Solution
- Step 1: Write the proportion equation
141,829.20 : 212,484.60 = 115,390.80 : x - Step 2: Convert to fraction form
141,829.20/212,484.60 = 115,390.80/x - Step 3: Cross multiply
141,829.20x = 212,484.60 × 115,390.80 - Step 4: Simplify right side
141,829.20x = 24,518,767,981.68 - Step 5: Solve for x
x = 24,518,767,981.68/141,829.20 - Step 6: Final answer
x = 172,875.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.