Finding the Fourth Proportional to 103,445.08, 155,235.66 and 56,730.76
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Solution
The fourth proportional to 103,445.08, 155,235.66 and 56,730.76 is: 85,133.45
Step by Step Solution
- Step 1: Write the proportion equation
103,445.08 : 155,235.66 = 56,730.76 : x - Step 2: Convert to fraction form
103,445.08/155,235.66 = 56,730.76/x - Step 3: Cross multiply
103,445.08x = 155,235.66 × 56,730.76 - Step 4: Simplify right side
103,445.08x = 8,806,636,970.90 - Step 5: Solve for x
x = 8,806,636,970.90/103,445.08 - Step 6: Final answer
x = 85,133.45
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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.