Finding the Fourth Proportional to 130,927.98, 180,685.83 and 74,344.62
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Solution
The fourth proportional to 130,927.98, 180,685.83 and 74,344.62 is: 102,598.54
Step by Step Solution
- Step 1: Write the proportion equation
130,927.98 : 180,685.83 = 74,344.62 : x - Step 2: Convert to fraction form
130,927.98/180,685.83 = 74,344.62/x - Step 3: Cross multiply
130,927.98x = 180,685.83 × 74,344.62 - Step 4: Simplify right side
130,927.98x = 13,433,019,370.73 - Step 5: Solve for x
x = 13,433,019,370.73/130,927.98 - Step 6: Final answer
x = 102,598.54
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1.5x scale
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.