Finding the Fourth Proportional to 134,868.80, 186,117.05 and 74,440.58
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Solution
The fourth proportional to 134,868.80, 186,117.05 and 74,440.58 is: 102,726.95
Step by Step Solution
- Step 1: Write the proportion equation
134,868.80 : 186,117.05 = 74,440.58 : x - Step 2: Convert to fraction form
134,868.80/186,117.05 = 74,440.58/x - Step 3: Cross multiply
134,868.80x = 186,117.05 × 74,440.58 - Step 4: Simplify right side
134,868.80x = 13,854,659,847.10 - Step 5: Solve for x
x = 13,854,659,847.10/134,868.80 - Step 6: Final answer
x = 102,726.95
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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.