Finding the Fourth Proportional to 130,462.14, 180,032.70 and 73,873.65
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Solution
The fourth proportional to 130,462.14, 180,032.70 and 73,873.65 is: 101,942.78
Step by Step Solution
- Step 1: Write the proportion equation
130,462.14 : 180,032.70 = 73,873.65 : x - Step 2: Convert to fraction form
130,462.14/180,032.70 = 73,873.65/x - Step 3: Cross multiply
130,462.14x = 180,032.70 × 73,873.65 - Step 4: Simplify right side
130,462.14x = 13,299,672,668.36 - Step 5: Solve for x
x = 13,299,672,668.36/130,462.14 - Step 6: Final answer
x = 101,942.78
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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.