Finding the Fourth Proportional to 121,497.40, 182,246.10 and 65,315.80
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Solution
The fourth proportional to 121,497.40, 182,246.10 and 65,315.80 is: 97,973.70
Step by Step Solution
- Step 1: Write the proportion equation
121,497.40 : 182,246.10 = 65,315.80 : x - Step 2: Convert to fraction form
121,497.40/182,246.10 = 65,315.80/x - Step 3: Cross multiply
121,497.40x = 182,246.10 × 65,315.80 - Step 4: Simplify right side
121,497.40x = 11,903,549,818.38 - Step 5: Solve for x
x = 11,903,549,818.38/121,497.40 - Step 6: Final answer
x = 97,973.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.