Finding the Fourth Proportional to 121,225.30, 167,279.58 and 70,239.97
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Solution
The fourth proportional to 121,225.30, 167,279.58 and 70,239.97 is: 96,924.59
Step by Step Solution
- Step 1: Write the proportion equation
121,225.30 : 167,279.58 = 70,239.97 : x - Step 2: Convert to fraction form
121,225.30/167,279.58 = 70,239.97/x - Step 3: Cross multiply
121,225.30x = 167,279.58 × 70,239.97 - Step 4: Simplify right side
121,225.30x = 11,749,712,680.81 - Step 5: Solve for x
x = 11,749,712,680.81/121,225.30 - Step 6: Final answer
x = 96,924.59
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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.