Finding the Fourth Proportional to 103,438.08, 155,225.16 and 56,723.76
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Solution
The fourth proportional to 103,438.08, 155,225.16 and 56,723.76 is: 85,122.95
Step by Step Solution
- Step 1: Write the proportion equation
103,438.08 : 155,225.16 = 56,723.76 : x - Step 2: Convert to fraction form
103,438.08/155,225.16 = 56,723.76/x - Step 3: Cross multiply
103,438.08x = 155,225.16 × 56,723.76 - Step 4: Simplify right side
103,438.08x = 8,804,954,721.80 - Step 5: Solve for x
x = 8,804,954,721.80/103,438.08 - Step 6: Final answer
x = 85,122.95
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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.