Finding the Fourth Proportional to 83,461.08, 124,447.14 and 74,188.20
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Solution
The fourth proportional to 83,461.08, 124,447.14 and 74,188.20 is: 110,620.53
Step by Step Solution
- Step 1: Write the proportion equation
83,461.08 : 124,447.14 = 74,188.20 : x - Step 2: Convert to fraction form
83,461.08/124,447.14 = 74,188.20/x - Step 3: Cross multiply
83,461.08x = 124,447.14 × 74,188.20 - Step 4: Simplify right side
83,461.08x = 9,232,509,311.75 - Step 5: Solve for x
x = 9,232,509,311.75/83,461.08 - Step 6: Final answer
x = 110,620.53
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.