Finding the Fourth Proportional to 124,723.53, 187,163.06 and 72,235.53
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Solution
The fourth proportional to 124,723.53, 187,163.06 and 72,235.53 is: 108,398.33
Step by Step Solution
- Step 1: Write the proportion equation
124,723.53 : 187,163.06 = 72,235.53 : x - Step 2: Convert to fraction form
124,723.53/187,163.06 = 72,235.53/x - Step 3: Cross multiply
124,723.53x = 187,163.06 × 72,235.53 - Step 4: Simplify right side
124,723.53x = 13,519,822,474.34 - Step 5: Solve for x
x = 13,519,822,474.34/124,723.53 - Step 6: Final answer
x = 108,398.33
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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.