Finding the Fourth Proportional to 130,412.61, 196,624.62 and 129,602.99
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Solution
The fourth proportional to 130,412.61, 196,624.62 and 129,602.99 is: 195,403.95
Step by Step Solution
- Step 1: Write the proportion equation
130,412.61 : 196,624.62 = 129,602.99 : x - Step 2: Convert to fraction form
130,412.61/196,624.62 = 129,602.99/x - Step 3: Cross multiply
130,412.61x = 196,624.62 × 129,602.99 - Step 4: Simplify right side
130,412.61x = 25,483,138,659.61 - Step 5: Solve for x
x = 25,483,138,659.61/130,412.61 - Step 6: Final answer
x = 195,403.95
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.