Finding the Fourth Proportional to 105,295.08, 145,303.80 and 66,553.68
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Solution
The fourth proportional to 105,295.08, 145,303.80 and 66,553.68 is: 91,841.92
Step by Step Solution
- Step 1: Write the proportion equation
105,295.08 : 145,303.80 = 66,553.68 : x - Step 2: Convert to fraction form
105,295.08/145,303.80 = 66,553.68/x - Step 3: Cross multiply
105,295.08x = 145,303.80 × 66,553.68 - Step 4: Simplify right side
105,295.08x = 9,670,502,607.98 - Step 5: Solve for x
x = 9,670,502,607.98/105,295.08 - Step 6: Final answer
x = 91,841.92
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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.