Finding the Fourth Proportional to 118,811.64, 178,202.57 and 38,842.91
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Solution
The fourth proportional to 118,811.64, 178,202.57 and 38,842.91 is: 58,259.49
Step by Step Solution
- Step 1: Write the proportion equation
118,811.64 : 178,202.57 = 38,842.91 : x - Step 2: Convert to fraction form
118,811.64/178,202.57 = 38,842.91/x - Step 3: Cross multiply
118,811.64x = 178,202.57 × 38,842.91 - Step 4: Simplify right side
118,811.64x = 6,921,905,303.05 - Step 5: Solve for x
x = 6,921,905,303.05/118,811.64 - Step 6: Final answer
x = 58,259.49
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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.