Finding the Fourth Proportional to 147,038.40, 202,817.28 and 86,558.04
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Solution
The fourth proportional to 147,038.40, 202,817.28 and 86,558.04 is: 119,393.75
Step by Step Solution
- Step 1: Write the proportion equation
147,038.40 : 202,817.28 = 86,558.04 : x - Step 2: Convert to fraction form
147,038.40/202,817.28 = 86,558.04/x - Step 3: Cross multiply
147,038.40x = 202,817.28 × 86,558.04 - Step 4: Simplify right side
147,038.40x = 17,555,466,234.93 - Step 5: Solve for x
x = 17,555,466,234.93/147,038.40 - Step 6: Final answer
x = 119,393.75
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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.