Finding the Fourth Proportional to 134,726.99, 185,920.79 and 74,303.21
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Solution
The fourth proportional to 134,726.99, 185,920.79 and 74,303.21 is: 102,537.08
Step by Step Solution
- Step 1: Write the proportion equation
134,726.99 : 185,920.79 = 74,303.21 : x - Step 2: Convert to fraction form
134,726.99/185,920.79 = 74,303.21/x - Step 3: Cross multiply
134,726.99x = 185,920.79 × 74,303.21 - Step 4: Simplify right side
134,726.99x = 13,814,511,596.02 - Step 5: Solve for x
x = 13,814,511,596.02/134,726.99 - Step 6: Final answer
x = 102,537.08
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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.