Finding the Fourth Proportional to 102,425.50, 141,347.80 and 57,106.34
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Solution
The fourth proportional to 102,425.50, 141,347.80 and 57,106.34 is: 78,807.09
Step by Step Solution
- Step 1: Write the proportion equation
102,425.50 : 141,347.80 = 57,106.34 : x - Step 2: Convert to fraction form
102,425.50/141,347.80 = 57,106.34/x - Step 3: Cross multiply
102,425.50x = 141,347.80 × 57,106.34 - Step 4: Simplify right side
102,425.50x = 8,071,855,525.05 - Step 5: Solve for x
x = 8,071,855,525.05/102,425.50 - Step 6: Final answer
x = 78,807.09
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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.