Finding the Fourth Proportional to 132,430.99, 182,758.35 and 72,005.69
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Solution
The fourth proportional to 132,430.99, 182,758.35 and 72,005.69 is: 99,369.80
Step by Step Solution
- Step 1: Write the proportion equation
132,430.99 : 182,758.35 = 72,005.69 : x - Step 2: Convert to fraction form
132,430.99/182,758.35 = 72,005.69/x - Step 3: Cross multiply
132,430.99x = 182,758.35 × 72,005.69 - Step 4: Simplify right side
132,430.99x = 13,159,641,095.01 - Step 5: Solve for x
x = 13,159,641,095.01/132,430.99 - Step 6: Final answer
x = 99,369.80
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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.