Finding the Fourth Proportional to 158,864.67, 219,237.06 and 87,246.23
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Solution
The fourth proportional to 158,864.67, 219,237.06 and 87,246.23 is: 120,401.90
Step by Step Solution
- Step 1: Write the proportion equation
158,864.67 : 219,237.06 = 87,246.23 : x - Step 2: Convert to fraction form
158,864.67/219,237.06 = 87,246.23/x - Step 3: Cross multiply
158,864.67x = 219,237.06 × 87,246.23 - Step 4: Simplify right side
158,864.67x = 19,127,607,509.38 - Step 5: Solve for x
x = 19,127,607,509.38/158,864.67 - Step 6: Final answer
x = 120,401.90
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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.