Finding the Fourth Proportional to 134,721.18, 185,927.76 and 77,368.48
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Solution
The fourth proportional to 134,721.18, 185,927.76 and 77,368.48 is: 106,775.70
Step by Step Solution
- Step 1: Write the proportion equation
134,721.18 : 185,927.76 = 77,368.48 : x - Step 2: Convert to fraction form
134,721.18/185,927.76 = 77,368.48/x - Step 3: Cross multiply
134,721.18x = 185,927.76 × 77,368.48 - Step 4: Simplify right side
134,721.18x = 14,384,948,181.00 - Step 5: Solve for x
x = 14,384,948,181.00/134,721.18 - Step 6: Final answer
x = 106,775.70
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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.