Finding the Fourth Proportional to 144,312.68, 199,205.00 and 86,955.19
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Solution
The fourth proportional to 144,312.68, 199,205.00 and 86,955.19 is: 120,030.39
Step by Step Solution
- Step 1: Write the proportion equation
144,312.68 : 199,205.00 = 86,955.19 : x - Step 2: Convert to fraction form
144,312.68/199,205.00 = 86,955.19/x - Step 3: Cross multiply
144,312.68x = 199,205.00 × 86,955.19 - Step 4: Simplify right side
144,312.68x = 17,321,908,017.24 - Step 5: Solve for x
x = 17,321,908,017.24/144,312.68 - Step 6: Final answer
x = 120,030.39
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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.