Finding the Fourth Proportional to 103,541.63, 155,312.65 and 28,661.99
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Solution
The fourth proportional to 103,541.63, 155,312.65 and 28,661.99 is: 42,993.04
Step by Step Solution
- Step 1: Write the proportion equation
103,541.63 : 155,312.65 = 28,661.99 : x - Step 2: Convert to fraction form
103,541.63/155,312.65 = 28,661.99/x - Step 3: Cross multiply
103,541.63x = 155,312.65 × 28,661.99 - Step 4: Simplify right side
103,541.63x = 4,451,569,621.17 - Step 5: Solve for x
x = 4,451,569,621.17/103,541.63 - Step 6: Final answer
x = 42,993.04
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.