Finding the Fourth Proportional to 133,214.64, 183,834.06 and 72,783.99
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Solution
The fourth proportional to 133,214.64, 183,834.06 and 72,783.99 is: 100,440.74
Step by Step Solution
- Step 1: Write the proportion equation
133,214.64 : 183,834.06 = 72,783.99 : x - Step 2: Convert to fraction form
133,214.64/183,834.06 = 72,783.99/x - Step 3: Cross multiply
133,214.64x = 183,834.06 × 72,783.99 - Step 4: Simplify right side
133,214.64x = 13,380,176,384.70 - Step 5: Solve for x
x = 13,380,176,384.70/133,214.64 - Step 6: Final answer
x = 100,440.74
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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.