Finding the Fourth Proportional to 130,361.08, 179,898.28 and 70,745.08
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Solution
The fourth proportional to 130,361.08, 179,898.28 and 70,745.08 is: 97,628.20
Step by Step Solution
- Step 1: Write the proportion equation
130,361.08 : 179,898.28 = 70,745.08 : x - Step 2: Convert to fraction form
130,361.08/179,898.28 = 70,745.08/x - Step 3: Cross multiply
130,361.08x = 179,898.28 × 70,745.08 - Step 4: Simplify right side
130,361.08x = 12,726,918,210.46 - Step 5: Solve for x
x = 12,726,918,210.46/130,361.08 - Step 6: Final answer
x = 97,628.20
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1.5x scale
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.