Finding the Fourth Proportional to 102,688.45, 153,657.99 and 60,588.70
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Solution
The fourth proportional to 102,688.45, 153,657.99 and 60,588.70 is: 90,661.98
Step by Step Solution
- Step 1: Write the proportion equation
102,688.45 : 153,657.99 = 60,588.70 : x - Step 2: Convert to fraction form
102,688.45/153,657.99 = 60,588.70/x - Step 3: Cross multiply
102,688.45x = 153,657.99 × 60,588.70 - Step 4: Simplify right side
102,688.45x = 9,309,937,474.57 - Step 5: Solve for x
x = 9,309,937,474.57/102,688.45 - Step 6: Final answer
x = 90,661.98
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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.