Finding the Fourth Proportional to 104,134.79, 143,705.80 and 56,387.99
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Solution
The fourth proportional to 104,134.79, 143,705.80 and 56,387.99 is: 77,815.31
Step by Step Solution
- Step 1: Write the proportion equation
104,134.79 : 143,705.80 = 56,387.99 : x - Step 2: Convert to fraction form
104,134.79/143,705.80 = 56,387.99/x - Step 3: Cross multiply
104,134.79x = 143,705.80 × 56,387.99 - Step 4: Simplify right side
104,134.79x = 8,103,281,213.34 - Step 5: Solve for x
x = 8,103,281,213.34/104,134.79 - Step 6: Final answer
x = 77,815.31
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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.