Finding the Fourth Proportional to 127,130.87, 175,472.85 and 86,860.91
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Solution
The fourth proportional to 127,130.87, 175,472.85 and 86,860.91 is: 119,890.09
Step by Step Solution
- Step 1: Write the proportion equation
127,130.87 : 175,472.85 = 86,860.91 : x - Step 2: Convert to fraction form
127,130.87/175,472.85 = 86,860.91/x - Step 3: Cross multiply
127,130.87x = 175,472.85 × 86,860.91 - Step 4: Simplify right side
127,130.87x = 15,241,730,553.93 - Step 5: Solve for x
x = 15,241,730,553.93/127,130.87 - Step 6: Final answer
x = 119,890.09
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1.5x scale
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.