Finding the Fourth Proportional to 122,965.08, 169,712.58 and 75,233.80
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Solution
The fourth proportional to 122,965.08, 169,712.58 and 75,233.80 is: 103,835.35
Step by Step Solution
- Step 1: Write the proportion equation
122,965.08 : 169,712.58 = 75,233.80 : x - Step 2: Convert to fraction form
122,965.08/169,712.58 = 75,233.80/x - Step 3: Cross multiply
122,965.08x = 169,712.58 × 75,233.80 - Step 4: Simplify right side
122,965.08x = 12,768,122,301.20 - Step 5: Solve for x
x = 12,768,122,301.20/122,965.08 - Step 6: Final answer
x = 103,835.35
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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.