Finding the Fourth Proportional to 124,782.36, 187,188.99 and 48,871.05
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Solution
The fourth proportional to 124,782.36, 187,188.99 and 48,871.05 is: 73,312.63
Step by Step Solution
- Step 1: Write the proportion equation
124,782.36 : 187,188.99 = 48,871.05 : x - Step 2: Convert to fraction form
124,782.36/187,188.99 = 48,871.05/x - Step 3: Cross multiply
124,782.36x = 187,188.99 × 48,871.05 - Step 4: Simplify right side
124,782.36x = 9,148,122,489.74 - Step 5: Solve for x
x = 9,148,122,489.74/124,782.36 - Step 6: Final answer
x = 73,312.63
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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.