Finding the Fourth Proportional to 134,778.08, 185,987.12 and 81,052.67
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Solution
The fourth proportional to 134,778.08, 185,987.12 and 81,052.67 is: 111,848.69
Step by Step Solution
- Step 1: Write the proportion equation
134,778.08 : 185,987.12 = 81,052.67 : x - Step 2: Convert to fraction form
134,778.08/185,987.12 = 81,052.67/x - Step 3: Cross multiply
134,778.08x = 185,987.12 × 81,052.67 - Step 4: Simplify right side
134,778.08x = 15,074,751,326.41 - Step 5: Solve for x
x = 15,074,751,326.41/134,778.08 - Step 6: Final answer
x = 111,848.69
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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.