Finding the Fourth Proportional to 125,359.71, 187,862.77 and 69,225.09
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Solution
The fourth proportional to 125,359.71, 187,862.77 and 69,225.09 is: 103,740.01
Step by Step Solution
- Step 1: Write the proportion equation
125,359.71 : 187,862.77 = 69,225.09 : x - Step 2: Convert to fraction form
125,359.71/187,862.77 = 69,225.09/x - Step 3: Cross multiply
125,359.71x = 187,862.77 × 69,225.09 - Step 4: Simplify right side
125,359.71x = 13,004,817,160.90 - Step 5: Solve for x
x = 13,004,817,160.90/125,359.71 - Step 6: Final answer
x = 103,740.01
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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.