Finding the Fourth Proportional to 130,354.13, 179,888.70 and 70,738.13
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Solution
The fourth proportional to 130,354.13, 179,888.70 and 70,738.13 is: 97,618.62
Step by Step Solution
- Step 1: Write the proportion equation
130,354.13 : 179,888.70 = 70,738.13 : x - Step 2: Convert to fraction form
130,354.13/179,888.70 = 70,738.13/x - Step 3: Cross multiply
130,354.13x = 179,888.70 × 70,738.13 - Step 4: Simplify right side
130,354.13x = 12,724,990,246.13 - Step 5: Solve for x
x = 12,724,990,246.13/130,354.13 - Step 6: Final answer
x = 97,618.62
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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.