Finding the Fourth Proportional to 128,567.00, 177,422.97 and 74,888.91
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Solution
The fourth proportional to 128,567.00, 177,422.97 and 74,888.91 is: 103,346.99
Step by Step Solution
- Step 1: Write the proportion equation
128,567.00 : 177,422.97 = 74,888.91 : x - Step 2: Convert to fraction form
128,567.00/177,422.97 = 74,888.91/x - Step 3: Cross multiply
128,567.00x = 177,422.97 × 74,888.91 - Step 4: Simplify right side
128,567.00x = 13,287,013,113.10 - Step 5: Solve for x
x = 13,287,013,113.10/128,567.00 - Step 6: Final answer
x = 103,346.99
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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.