Finding the Fourth Proportional to 130,670.18, 195,757.98 and 77,202.28
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Solution
The fourth proportional to 130,670.18, 195,757.98 and 77,202.28 is: 115,657.32
Step by Step Solution
- Step 1: Write the proportion equation
130,670.18 : 195,757.98 = 77,202.28 : x - Step 2: Convert to fraction form
130,670.18/195,757.98 = 77,202.28/x - Step 3: Cross multiply
130,670.18x = 195,757.98 × 77,202.28 - Step 4: Simplify right side
130,670.18x = 15,112,962,384.19 - Step 5: Solve for x
x = 15,112,962,384.19/130,670.18 - Step 6: Final answer
x = 115,657.32
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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.