Finding the Fourth Proportional to 145,847.08, 201,269.06 and 78,779.08
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Solution
The fourth proportional to 145,847.08, 201,269.06 and 78,779.08 is: 108,715.18
Step by Step Solution
- Step 1: Write the proportion equation
145,847.08 : 201,269.06 = 78,779.08 : x - Step 2: Convert to fraction form
145,847.08/201,269.06 = 78,779.08/x - Step 3: Cross multiply
145,847.08x = 201,269.06 × 78,779.08 - Step 4: Simplify right side
145,847.08x = 15,855,791,379.26 - Step 5: Solve for x
x = 15,855,791,379.26/145,847.08 - Step 6: Final answer
x = 108,715.18
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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.