Finding the Fourth Proportional to 159,108.12, 219,602.76 and 100,927.32
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Solution
The fourth proportional to 159,108.12, 219,602.76 and 100,927.32 is: 139,300.99
Step by Step Solution
- Step 1: Write the proportion equation
159,108.12 : 219,602.76 = 100,927.32 : x - Step 2: Convert to fraction form
159,108.12/219,602.76 = 100,927.32/x - Step 3: Cross multiply
159,108.12x = 219,602.76 × 100,927.32 - Step 4: Simplify right side
159,108.12x = 22,163,918,031.40 - Step 5: Solve for x
x = 22,163,918,031.40/159,108.12 - Step 6: Final answer
x = 139,300.99
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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.