Finding the Fourth Proportional to 112,866.99, 155,772.30 and 69,860.28
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Solution
The fourth proportional to 112,866.99, 155,772.30 and 69,860.28 is: 96,417.00
Step by Step Solution
- Step 1: Write the proportion equation
112,866.99 : 155,772.30 = 69,860.28 : x - Step 2: Convert to fraction form
112,866.99/155,772.30 = 69,860.28/x - Step 3: Cross multiply
112,866.99x = 155,772.30 × 69,860.28 - Step 4: Simplify right side
112,866.99x = 10,882,296,494.24 - Step 5: Solve for x
x = 10,882,296,494.24/112,866.99 - Step 6: Final answer
x = 96,417.00
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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.