Finding the Fourth Proportional to 124,619.23, 171,972.30 and 70,903.09
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Solution
The fourth proportional to 124,619.23, 171,972.30 and 70,903.09 is: 97,844.99
Step by Step Solution
- Step 1: Write the proportion equation
124,619.23 : 171,972.30 = 70,903.09 : x - Step 2: Convert to fraction form
124,619.23/171,972.30 = 70,903.09/x - Step 3: Cross multiply
124,619.23x = 171,972.30 × 70,903.09 - Step 4: Simplify right side
124,619.23x = 12,193,367,464.41 - Step 5: Solve for x
x = 12,193,367,464.41/124,619.23 - Step 6: Final answer
x = 97,844.99
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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.