Finding the Fourth Proportional to 124,178.96, 171,316.68 and 75,756.08
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Solution
The fourth proportional to 124,178.96, 171,316.68 and 75,756.08 is: 104,512.71
Step by Step Solution
- Step 1: Write the proportion equation
124,178.96 : 171,316.68 = 75,756.08 : x - Step 2: Convert to fraction form
124,178.96/171,316.68 = 75,756.08/x - Step 3: Cross multiply
124,178.96x = 171,316.68 × 75,756.08 - Step 4: Simplify right side
124,178.96x = 12,978,280,115.41 - Step 5: Solve for x
x = 12,978,280,115.41/124,178.96 - Step 6: Final answer
x = 104,512.71
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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.