Finding the Fourth Proportional to 108,688.79, 149,988.62 and 60,941.99
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Solution
The fourth proportional to 108,688.79, 149,988.62 and 60,941.99 is: 84,098.87
Step by Step Solution
- Step 1: Write the proportion equation
108,688.79 : 149,988.62 = 60,941.99 : x - Step 2: Convert to fraction form
108,688.79/149,988.62 = 60,941.99/x - Step 3: Cross multiply
108,688.79x = 149,988.62 × 60,941.99 - Step 4: Simplify right side
108,688.79x = 9,140,603,925.50 - Step 5: Solve for x
x = 9,140,603,925.50/108,688.79 - Step 6: Final answer
x = 84,098.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.