Finding the Fourth Proportional to 113,339.12, 156,408.35 and 62,357.09
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Solution
The fourth proportional to 113,339.12, 156,408.35 and 62,357.09 is: 86,052.98
Step by Step Solution
- Step 1: Write the proportion equation
113,339.12 : 156,408.35 = 62,357.09 : x - Step 2: Convert to fraction form
113,339.12/156,408.35 = 62,357.09/x - Step 3: Cross multiply
113,339.12x = 156,408.35 × 62,357.09 - Step 4: Simplify right side
113,339.12x = 9,753,168,463.87 - Step 5: Solve for x
x = 9,753,168,463.87/113,339.12 - Step 6: Final answer
x = 86,052.98
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1.5x scale
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.