Finding the Fourth Proportional to 102,440.84, 141,356.95 and 62,164.40
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Solution
The fourth proportional to 102,440.84, 141,356.95 and 62,164.40 is: 85,779.94
Step by Step Solution
- Step 1: Write the proportion equation
102,440.84 : 141,356.95 = 62,164.40 : x - Step 2: Convert to fraction form
102,440.84/141,356.95 = 62,164.40/x - Step 3: Cross multiply
102,440.84x = 141,356.95 × 62,164.40 - Step 4: Simplify right side
102,440.84x = 8,787,369,120.38 - Step 5: Solve for x
x = 8,787,369,120.38/102,440.84 - Step 6: Final answer
x = 85,779.94
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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.