Finding the Fourth Proportional to 102,259.64, 141,117.18 and 56,936.63
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Solution
The fourth proportional to 102,259.64, 141,117.18 and 56,936.63 is: 78,571.92
Step by Step Solution
- Step 1: Write the proportion equation
102,259.64 : 141,117.18 = 56,936.63 : x - Step 2: Convert to fraction form
102,259.64/141,117.18 = 56,936.63/x - Step 3: Cross multiply
102,259.64x = 141,117.18 × 56,936.63 - Step 4: Simplify right side
102,259.64x = 8,034,736,664.30 - Step 5: Solve for x
x = 8,034,736,664.30/102,259.64 - Step 6: Final answer
x = 78,571.92
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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.