Finding the Fourth Proportional to 106,909.76, 160,374.36 and 28,023.68
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Solution
The fourth proportional to 106,909.76, 160,374.36 and 28,023.68 is: 42,038.07
Step by Step Solution
- Step 1: Write the proportion equation
106,909.76 : 160,374.36 = 28,023.68 : x - Step 2: Convert to fraction form
106,909.76/160,374.36 = 28,023.68/x - Step 3: Cross multiply
106,909.76x = 160,374.36 × 28,023.68 - Step 4: Simplify right side
106,909.76x = 4,494,279,744.84 - Step 5: Solve for x
x = 4,494,279,744.84/106,909.76 - Step 6: Final answer
x = 42,038.07
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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.