Finding the Fourth Proportional to 126,854.28, 175,130.64 and 86,626.44
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Solution
The fourth proportional to 126,854.28, 175,130.64 and 86,626.44 is: 119,593.47
Step by Step Solution
- Step 1: Write the proportion equation
126,854.28 : 175,130.64 = 86,626.44 : x - Step 2: Convert to fraction form
126,854.28/175,130.64 = 86,626.44/x - Step 3: Cross multiply
126,854.28x = 175,130.64 × 86,626.44 - Step 4: Simplify right side
126,854.28x = 15,170,943,878.12 - Step 5: Solve for x
x = 15,170,943,878.12/126,854.28 - Step 6: Final answer
x = 119,593.47
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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.