Finding the Fourth Proportional to 159,206.72, 219,699.36 and 87,582.08
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Solution
The fourth proportional to 159,206.72, 219,699.36 and 87,582.08 is: 120,860.02
Step by Step Solution
- Step 1: Write the proportion equation
159,206.72 : 219,699.36 = 87,582.08 : x - Step 2: Convert to fraction form
159,206.72/219,699.36 = 87,582.08/x - Step 3: Cross multiply
159,206.72x = 219,699.36 × 87,582.08 - Step 4: Simplify right side
159,206.72x = 19,241,726,923.47 - Step 5: Solve for x
x = 19,241,726,923.47/159,206.72 - Step 6: Final answer
x = 120,860.02
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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.