Finding the Fourth Proportional to 133,242.08, 183,866.20 and 72,800.68
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Solution
The fourth proportional to 133,242.08, 183,866.20 and 72,800.68 is: 100,460.64
Step by Step Solution
- Step 1: Write the proportion equation
133,242.08 : 183,866.20 = 72,800.68 : x - Step 2: Convert to fraction form
133,242.08/183,866.20 = 72,800.68/x - Step 3: Cross multiply
133,242.08x = 183,866.20 × 72,800.68 - Step 4: Simplify right side
133,242.08x = 13,385,584,389.02 - Step 5: Solve for x
x = 13,385,584,389.02/133,242.08 - Step 6: Final answer
x = 100,460.64
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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.