Finding the Fourth Proportional to 130,474.68, 195,710.99 and 77,533.56
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Solution
The fourth proportional to 130,474.68, 195,710.99 and 77,533.56 is: 116,299.72
Step by Step Solution
- Step 1: Write the proportion equation
130,474.68 : 195,710.99 = 77,533.56 : x - Step 2: Convert to fraction form
130,474.68/195,710.99 = 77,533.56/x - Step 3: Cross multiply
130,474.68x = 195,710.99 × 77,533.56 - Step 4: Simplify right side
130,474.68x = 15,174,169,398.16 - Step 5: Solve for x
x = 15,174,169,398.16/130,474.68 - Step 6: Final answer
x = 116,299.72
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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.