Finding the Fourth Proportional to 150,453.99, 207,618.80 and 86,787.99
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Solution
The fourth proportional to 150,453.99, 207,618.80 and 86,787.99 is: 119,762.98
Step by Step Solution
- Step 1: Write the proportion equation
150,453.99 : 207,618.80 = 86,787.99 : x - Step 2: Convert to fraction form
150,453.99/207,618.80 = 86,787.99/x - Step 3: Cross multiply
150,453.99x = 207,618.80 × 86,787.99 - Step 4: Simplify right side
150,453.99x = 18,018,817,904.27 - Step 5: Solve for x
x = 18,018,817,904.27/150,453.99 - Step 6: Final answer
x = 119,762.98
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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.