Finding the Fourth Proportional to 130,490.08, 195,735.14 and 31,994.08
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Solution
The fourth proportional to 130,490.08, 195,735.14 and 31,994.08 is: 47,991.12
Step by Step Solution
- Step 1: Write the proportion equation
130,490.08 : 195,735.14 = 31,994.08 : x - Step 2: Convert to fraction form
130,490.08/195,735.14 = 31,994.08/x - Step 3: Cross multiply
130,490.08x = 195,735.14 × 31,994.08 - Step 4: Simplify right side
130,490.08x = 6,262,365,727.97 - Step 5: Solve for x
x = 6,262,365,727.97/130,490.08 - Step 6: Final answer
x = 47,991.12
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1.5x scale
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.