Finding the Fourth Proportional to 158,983.98, 219,402.99 and 87,370.62
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Solution
The fourth proportional to 158,983.98, 219,402.99 and 87,370.62 is: 120,574.26
Step by Step Solution
- Step 1: Write the proportion equation
158,983.98 : 219,402.99 = 87,370.62 : x - Step 2: Convert to fraction form
158,983.98/219,402.99 = 87,370.62/x - Step 3: Cross multiply
158,983.98x = 219,402.99 × 87,370.62 - Step 4: Simplify right side
158,983.98x = 19,169,375,266.15 - Step 5: Solve for x
x = 19,169,375,266.15/158,983.98 - Step 6: Final answer
x = 120,574.26
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1.5x scale
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.