Finding the Fourth Proportional to 112,485.60, 155,225.36 and 61,497.44
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Solution
The fourth proportional to 112,485.60, 155,225.36 and 61,497.44 is: 84,863.86
Step by Step Solution
- Step 1: Write the proportion equation
112,485.60 : 155,225.36 = 61,497.44 : x - Step 2: Convert to fraction form
112,485.60/155,225.36 = 61,497.44/x - Step 3: Cross multiply
112,485.60x = 155,225.36 × 61,497.44 - Step 4: Simplify right side
112,485.60x = 9,545,962,263.08 - Step 5: Solve for x
x = 9,545,962,263.08/112,485.60 - Step 6: Final answer
x = 84,863.86
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1.5x scale
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.