Finding the Fourth Proportional to 125,220.79, 172,813.10 and 70,754.08
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Solution
The fourth proportional to 125,220.79, 172,813.10 and 70,754.08 is: 97,645.39
Step by Step Solution
- Step 1: Write the proportion equation
125,220.79 : 172,813.10 = 70,754.08 : x - Step 2: Convert to fraction form
125,220.79/172,813.10 = 70,754.08/x - Step 3: Cross multiply
125,220.79x = 172,813.10 × 70,754.08 - Step 4: Simplify right side
125,220.79x = 12,227,231,926.71 - Step 5: Solve for x
x = 12,227,231,926.71/125,220.79 - Step 6: Final answer
x = 97,645.39
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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.