Finding the Fourth Proportional to 101,574.18, 140,125.84 and 65,775.71
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Solution
The fourth proportional to 101,574.18, 140,125.84 and 65,775.71 is: 90,740.35
Step by Step Solution
- Step 1: Write the proportion equation
101,574.18 : 140,125.84 = 65,775.71 : x - Step 2: Convert to fraction form
101,574.18/140,125.84 = 65,775.71/x - Step 3: Cross multiply
101,574.18x = 140,125.84 × 65,775.71 - Step 4: Simplify right side
101,574.18x = 9,216,876,801.22 - Step 5: Solve for x
x = 9,216,876,801.22/101,574.18 - Step 6: Final answer
x = 90,740.35
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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.