Finding the Fourth Proportional to 150,700.94, 207,985.72 and 87,038.66
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Solution
The fourth proportional to 150,700.94, 207,985.72 and 87,038.66 is: 120,123.99
Step by Step Solution
- Step 1: Write the proportion equation
150,700.94 : 207,985.72 = 87,038.66 : x - Step 2: Convert to fraction form
150,700.94/207,985.72 = 87,038.66/x - Step 3: Cross multiply
150,700.94x = 207,985.72 × 87,038.66 - Step 4: Simplify right side
150,700.94x = 18,102,798,367.94 - Step 5: Solve for x
x = 18,102,798,367.94/150,700.94 - Step 6: Final answer
x = 120,123.99
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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.