Finding the Fourth Proportional to 130,930.97, 180,670.70 and 87,901.74
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Solution
The fourth proportional to 130,930.97, 180,670.70 and 87,901.74 is: 121,294.98
Step by Step Solution
- Step 1: Write the proportion equation
130,930.97 : 180,670.70 = 87,901.74 : x - Step 2: Convert to fraction form
130,930.97/180,670.70 = 87,901.74/x - Step 3: Cross multiply
130,930.97x = 180,670.70 × 87,901.74 - Step 4: Simplify right side
130,930.97x = 15,881,269,116.77 - Step 5: Solve for x
x = 15,881,269,116.77/130,930.97 - Step 6: Final answer
x = 121,294.98
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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.