Finding the Fourth Proportional to 118,239.80, 177,359.70 and 56,031.80
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Solution
The fourth proportional to 118,239.80, 177,359.70 and 56,031.80 is: 84,047.70
Step by Step Solution
- Step 1: Write the proportion equation
118,239.80 : 177,359.70 = 56,031.80 : x - Step 2: Convert to fraction form
118,239.80/177,359.70 = 56,031.80/x - Step 3: Cross multiply
118,239.80x = 177,359.70 × 56,031.80 - Step 4: Simplify right side
118,239.80x = 9,937,783,238.46 - Step 5: Solve for x
x = 9,937,783,238.46/118,239.80 - Step 6: Final answer
x = 84,047.70
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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.