Finding the Fourth Proportional to 102,925.04, 142,042.80 and 57,602.09
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Solution
The fourth proportional to 102,925.04, 142,042.80 and 57,602.09 is: 79,494.38
Step by Step Solution
- Step 1: Write the proportion equation
102,925.04 : 142,042.80 = 57,602.09 : x - Step 2: Convert to fraction form
102,925.04/142,042.80 = 57,602.09/x - Step 3: Cross multiply
102,925.04x = 142,042.80 × 57,602.09 - Step 4: Simplify right side
102,925.04x = 8,181,961,439.24 - Step 5: Solve for x
x = 8,181,961,439.24/102,925.04 - Step 6: Final answer
x = 79,494.38
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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.