Finding the Fourth Proportional to 115,862.08, 159,807.09 and 106,332.84
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Solution
The fourth proportional to 115,862.08, 159,807.09 and 106,332.84 is: 146,663.53
Step by Step Solution
- Step 1: Write the proportion equation
115,862.08 : 159,807.09 = 106,332.84 : x - Step 2: Convert to fraction form
115,862.08/159,807.09 = 106,332.84/x - Step 3: Cross multiply
115,862.08x = 159,807.09 × 106,332.84 - Step 4: Simplify right side
115,862.08x = 16,992,741,731.84 - Step 5: Solve for x
x = 16,992,741,731.84/115,862.08 - Step 6: Final answer
x = 146,663.53
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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.