Finding the Fourth Proportional to 104,101.68, 143,660.16 and 56,355.02
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Solution
The fourth proportional to 104,101.68, 143,660.16 and 56,355.02 is: 77,769.84
Step by Step Solution
- Step 1: Write the proportion equation
104,101.68 : 143,660.16 = 56,355.02 : x - Step 2: Convert to fraction form
104,101.68/143,660.16 = 56,355.02/x - Step 3: Cross multiply
104,101.68x = 143,660.16 × 56,355.02 - Step 4: Simplify right side
104,101.68x = 8,095,971,190.00 - Step 5: Solve for x
x = 8,095,971,190.00/104,101.68 - Step 6: Final answer
x = 77,769.84
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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.