Finding the Fourth Proportional to 122,440.93, 168,970.99 and 68,729.83
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Solution
The fourth proportional to 122,440.93, 168,970.99 and 68,729.83 is: 94,848.57
Step by Step Solution
- Step 1: Write the proportion equation
122,440.93 : 168,970.99 = 68,729.83 : x - Step 2: Convert to fraction form
122,440.93/168,970.99 = 68,729.83/x - Step 3: Cross multiply
122,440.93x = 168,970.99 × 68,729.83 - Step 4: Simplify right side
122,440.93x = 11,613,347,417.63 - Step 5: Solve for x
x = 11,613,347,417.63/122,440.93 - Step 6: Final answer
x = 94,848.57
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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.