Finding the Fourth Proportional to 124,420.80, 186,631.20 and 73,901.10
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Solution
The fourth proportional to 124,420.80, 186,631.20 and 73,901.10 is: 110,851.65
Step by Step Solution
- Step 1: Write the proportion equation
124,420.80 : 186,631.20 = 73,901.10 : x - Step 2: Convert to fraction form
124,420.80/186,631.20 = 73,901.10/x - Step 3: Cross multiply
124,420.80x = 186,631.20 × 73,901.10 - Step 4: Simplify right side
124,420.80x = 13,792,250,974.32 - Step 5: Solve for x
x = 13,792,250,974.32/124,420.80 - Step 6: Final answer
x = 110,851.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.