Finding the Fourth Proportional to 159,026.88, 219,457.41 and 86,430.18
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Solution
The fourth proportional to 159,026.88, 219,457.41 and 86,430.18 is: 119,273.82
Step by Step Solution
- Step 1: Write the proportion equation
159,026.88 : 219,457.41 = 86,430.18 : x - Step 2: Convert to fraction form
159,026.88/219,457.41 = 86,430.18/x - Step 3: Cross multiply
159,026.88x = 219,457.41 × 86,430.18 - Step 4: Simplify right side
159,026.88x = 18,967,743,448.63 - Step 5: Solve for x
x = 18,967,743,448.63/159,026.88 - Step 6: Final answer
x = 119,273.82
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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.