Finding the Fourth Proportional to 130,766.28, 180,495.99 and 77,068.68
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Solution
The fourth proportional to 130,766.28, 180,495.99 and 77,068.68 is: 106,377.48
Step by Step Solution
- Step 1: Write the proportion equation
130,766.28 : 180,495.99 = 77,068.68 : x - Step 2: Convert to fraction form
130,766.28/180,495.99 = 77,068.68/x - Step 3: Cross multiply
130,766.28x = 180,495.99 × 77,068.68 - Step 4: Simplify right side
130,766.28x = 13,910,587,694.59 - Step 5: Solve for x
x = 13,910,587,694.59/130,766.28 - Step 6: Final answer
x = 106,377.48
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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.