Finding the Fourth Proportional to 122,601.60, 169,203.60 and 74,854.80
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Solution
The fourth proportional to 122,601.60, 169,203.60 and 74,854.80 is: 103,307.80
Step by Step Solution
- Step 1: Write the proportion equation
122,601.60 : 169,203.60 = 74,854.80 : x - Step 2: Convert to fraction form
122,601.60/169,203.60 = 74,854.80/x - Step 3: Cross multiply
122,601.60x = 169,203.60 × 74,854.80 - Step 4: Simplify right side
122,601.60x = 12,665,701,637.28 - Step 5: Solve for x
x = 12,665,701,637.28/122,601.60 - Step 6: Final answer
x = 103,307.80
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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.