Finding the Fourth Proportional to 103,440.08, 155,228.16 and 56,725.76
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Solution
The fourth proportional to 103,440.08, 155,228.16 and 56,725.76 is: 85,125.95
Step by Step Solution
- Step 1: Write the proportion equation
103,440.08 : 155,228.16 = 56,725.76 : x - Step 2: Convert to fraction form
103,440.08/155,228.16 = 56,725.76/x - Step 3: Cross multiply
103,440.08x = 155,228.16 × 56,725.76 - Step 4: Simplify right side
103,440.08x = 8,805,435,349.40 - Step 5: Solve for x
x = 8,805,435,349.40/103,440.08 - Step 6: Final answer
x = 85,125.95
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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.