Finding the Fourth Proportional to 143,671.19, 198,266.51 and 83,253.50
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Solution
The fourth proportional to 143,671.19, 198,266.51 and 83,253.50 is: 114,889.99
Step by Step Solution
- Step 1: Write the proportion equation
143,671.19 : 198,266.51 = 83,253.50 : x - Step 2: Convert to fraction form
143,671.19/198,266.51 = 83,253.50/x - Step 3: Cross multiply
143,671.19x = 198,266.51 × 83,253.50 - Step 4: Simplify right side
143,671.19x = 16,506,380,890.29 - Step 5: Solve for x
x = 16,506,380,890.29/143,671.19 - Step 6: Final answer
x = 114,889.99
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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.