Finding the Fourth Proportional to 172,803.12, 238,473.36 and 101,176.44
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Solution
The fourth proportional to 172,803.12, 238,473.36 and 101,176.44 is: 139,626.45
Step by Step Solution
- Step 1: Write the proportion equation
172,803.12 : 238,473.36 = 101,176.44 : x - Step 2: Convert to fraction form
172,803.12/238,473.36 = 101,176.44/x - Step 3: Cross multiply
172,803.12x = 238,473.36 × 101,176.44 - Step 4: Simplify right side
172,803.12x = 24,127,885,599.64 - Step 5: Solve for x
x = 24,127,885,599.64/172,803.12 - Step 6: Final answer
x = 139,626.45
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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.