Finding the Fourth Proportional to 130,948.24, 180,711.12 and 74,359.84
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Solution
The fourth proportional to 130,948.24, 180,711.12 and 74,359.84 is: 102,618.03
Step by Step Solution
- Step 1: Write the proportion equation
130,948.24 : 180,711.12 = 74,359.84 : x - Step 2: Convert to fraction form
130,948.24/180,711.12 = 74,359.84/x - Step 3: Cross multiply
130,948.24x = 180,711.12 × 74,359.84 - Step 4: Simplify right side
130,948.24x = 13,437,649,969.42 - Step 5: Solve for x
x = 13,437,649,969.42/130,948.24 - Step 6: Final answer
x = 102,618.03
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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.