Finding the Fourth Proportional to 159,206.06, 219,705.79 and 86,610.53
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Solution
The fourth proportional to 159,206.06, 219,705.79 and 86,610.53 is: 119,523.31
Step by Step Solution
- Step 1: Write the proportion equation
159,206.06 : 219,705.79 = 86,610.53 : x - Step 2: Convert to fraction form
159,206.06/219,705.79 = 86,610.53/x - Step 3: Cross multiply
159,206.06x = 219,705.79 × 86,610.53 - Step 4: Simplify right side
159,206.06x = 19,028,834,482.92 - Step 5: Solve for x
x = 19,028,834,482.92/159,206.06 - Step 6: Final answer
x = 119,523.31
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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.