Finding the Fourth Proportional to 125,742.07, 173,980.99 and 109,642.95
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Solution
The fourth proportional to 125,742.07, 173,980.99 and 109,642.95 is: 151,705.70
Step by Step Solution
- Step 1: Write the proportion equation
125,742.07 : 173,980.99 = 109,642.95 : x - Step 2: Convert to fraction form
125,742.07/173,980.99 = 109,642.95/x - Step 3: Cross multiply
125,742.07x = 173,980.99 × 109,642.95 - Step 4: Simplify right side
125,742.07x = 19,075,788,439.31 - Step 5: Solve for x
x = 19,075,788,439.31/125,742.07 - Step 6: Final answer
x = 151,705.70
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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.