Finding the Fourth Proportional to 121,483.80, 182,225.70 and 68,995.80
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Solution
The fourth proportional to 121,483.80, 182,225.70 and 68,995.80 is: 103,493.70
Step by Step Solution
- Step 1: Write the proportion equation
121,483.80 : 182,225.70 = 68,995.80 : x - Step 2: Convert to fraction form
121,483.80/182,225.70 = 68,995.80/x - Step 3: Cross multiply
121,483.80x = 182,225.70 × 68,995.80 - Step 4: Simplify right side
121,483.80x = 12,572,807,952.06 - Step 5: Solve for x
x = 12,572,807,952.06/121,483.80 - Step 6: Final answer
x = 103,493.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.