Finding the Fourth Proportional to 106,666.40, 147,199.18 and 58,919.75
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Solution
The fourth proportional to 106,666.40, 147,199.18 and 58,919.75 is: 81,309.00
Step by Step Solution
- Step 1: Write the proportion equation
106,666.40 : 147,199.18 = 58,919.75 : x - Step 2: Convert to fraction form
106,666.40/147,199.18 = 58,919.75/x - Step 3: Cross multiply
106,666.40x = 147,199.18 × 58,919.75 - Step 4: Simplify right side
106,666.40x = 8,672,938,430.46 - Step 5: Solve for x
x = 8,672,938,430.46/106,666.40 - Step 6: Final answer
x = 81,309.00
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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.