Finding the Fourth Proportional to 176,612.84, 243,671.64 and 100,119.68
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Solution
The fourth proportional to 176,612.84, 243,671.64 and 100,119.68 is: 138,134.50
Step by Step Solution
- Step 1: Write the proportion equation
176,612.84 : 243,671.64 = 100,119.68 : x - Step 2: Convert to fraction form
176,612.84/243,671.64 = 100,119.68/x - Step 3: Cross multiply
176,612.84x = 243,671.64 × 100,119.68 - Step 4: Simplify right side
176,612.84x = 24,396,326,621.88 - Step 5: Solve for x
x = 24,396,326,621.88/176,612.84 - Step 6: Final answer
x = 138,134.50
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1.5x scale
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.