Finding the Fourth Proportional to 159,646.23, 220,124.66 and 119,288.79
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Solution
The fourth proportional to 159,646.23, 220,124.66 and 119,288.79 is: 164,478.70
Step by Step Solution
- Step 1: Write the proportion equation
159,646.23 : 220,124.66 = 119,288.79 : x - Step 2: Convert to fraction form
159,646.23/220,124.66 = 119,288.79/x - Step 3: Cross multiply
159,646.23x = 220,124.66 × 119,288.79 - Step 4: Simplify right side
159,646.23x = 26,258,403,744.12 - Step 5: Solve for x
x = 26,258,403,744.12/159,646.23 - Step 6: Final answer
x = 164,478.70
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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.