Finding the Fourth Proportional to 159,210.36, 219,707.88 and 87,586.10
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Solution
The fourth proportional to 159,210.36, 219,707.88 and 87,586.10 is: 120,867.49
Step by Step Solution
- Step 1: Write the proportion equation
159,210.36 : 219,707.88 = 87,586.10 : x - Step 2: Convert to fraction form
159,210.36/219,707.88 = 87,586.10/x - Step 3: Cross multiply
159,210.36x = 219,707.88 × 87,586.10 - Step 4: Simplify right side
159,210.36x = 19,243,356,348.47 - Step 5: Solve for x
x = 19,243,356,348.47/159,210.36 - Step 6: Final answer
x = 120,867.49
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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.