Finding the Fourth Proportional to 159,098.48, 219,561.54 and 87,483.98
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Solution
The fourth proportional to 159,098.48, 219,561.54 and 87,483.98 is: 120,730.99
Step by Step Solution
- Step 1: Write the proportion equation
159,098.48 : 219,561.54 = 87,483.98 : x - Step 2: Convert to fraction form
159,098.48/219,561.54 = 87,483.98/x - Step 3: Cross multiply
159,098.48x = 219,561.54 × 87,483.98 - Step 4: Simplify right side
159,098.48x = 19,208,117,374.13 - Step 5: Solve for x
x = 19,208,117,374.13/159,098.48 - Step 6: Final answer
x = 120,730.99
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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.