Finding the Fourth Proportional to 150,687.42, 207,946.44 and 86,155.98
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Solution
The fourth proportional to 150,687.42, 207,946.44 and 86,155.98 is: 118,893.99
Step by Step Solution
- Step 1: Write the proportion equation
150,687.42 : 207,946.44 = 86,155.98 : x - Step 2: Convert to fraction form
150,687.42/207,946.44 = 86,155.98/x - Step 3: Cross multiply
150,687.42x = 207,946.44 × 86,155.98 - Step 4: Simplify right side
150,687.42x = 17,915,829,325.71 - Step 5: Solve for x
x = 17,915,829,325.71/150,687.42 - Step 6: Final answer
x = 118,893.99
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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.