Finding the Fourth Proportional to 130,158.08, 179,619.20 and 70,542.08
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Solution
The fourth proportional to 130,158.08, 179,619.20 and 70,542.08 is: 97,348.64
Step by Step Solution
- Step 1: Write the proportion equation
130,158.08 : 179,619.20 = 70,542.08 : x - Step 2: Convert to fraction form
130,158.08/179,619.20 = 70,542.08/x - Step 3: Cross multiply
130,158.08x = 179,619.20 × 70,542.08 - Step 4: Simplify right side
130,158.08x = 12,670,711,975.94 - Step 5: Solve for x
x = 12,670,711,975.94/130,158.08 - Step 6: Final answer
x = 97,348.64
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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.