Finding the Fourth Proportional to 122,953.68, 184,134.88 and 70,203.28
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Solution
The fourth proportional to 122,953.68, 184,134.88 and 70,203.28 is: 105,136.12
Step by Step Solution
- Step 1: Write the proportion equation
122,953.68 : 184,134.88 = 70,203.28 : x - Step 2: Convert to fraction form
122,953.68/184,134.88 = 70,203.28/x - Step 3: Cross multiply
122,953.68x = 184,134.88 × 70,203.28 - Step 4: Simplify right side
122,953.68x = 12,926,872,538.41 - Step 5: Solve for x
x = 12,926,872,538.41/122,953.68 - Step 6: Final answer
x = 105,136.12
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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.