Finding the Fourth Proportional to 134,729.44, 185,927.93 and 77,368.07
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Solution
The fourth proportional to 134,729.44, 185,927.93 and 77,368.07 is: 106,768.68
Step by Step Solution
- Step 1: Write the proportion equation
134,729.44 : 185,927.93 = 77,368.07 : x - Step 2: Convert to fraction form
134,729.44/185,927.93 = 77,368.07/x - Step 3: Cross multiply
134,729.44x = 185,927.93 × 77,368.07 - Step 4: Simplify right side
134,729.44x = 14,384,885,103.20 - Step 5: Solve for x
x = 14,384,885,103.20/134,729.44 - Step 6: Final answer
x = 106,768.68
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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.