Finding the Fourth Proportional to 129,065.06, 193,577.58 and 65,931.84
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Solution
The fourth proportional to 129,065.06, 193,577.58 and 65,931.84 is: 98,887.54
Step by Step Solution
- Step 1: Write the proportion equation
129,065.06 : 193,577.58 = 65,931.84 : x - Step 2: Convert to fraction form
129,065.06/193,577.58 = 65,931.84/x - Step 3: Cross multiply
129,065.06x = 193,577.58 × 65,931.84 - Step 4: Simplify right side
129,065.06x = 12,762,926,032.15 - Step 5: Solve for x
x = 12,762,926,032.15/129,065.06 - Step 6: Final answer
x = 98,887.54
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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.