Finding the Fourth Proportional to 139,417.38, 207,964.80 and 125,963.70
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Solution
The fourth proportional to 139,417.38, 207,964.80 and 125,963.70 is: 187,896.34
Step by Step Solution
- Step 1: Write the proportion equation
139,417.38 : 207,964.80 = 125,963.70 : x - Step 2: Convert to fraction form
139,417.38/207,964.80 = 125,963.70/x - Step 3: Cross multiply
139,417.38x = 207,964.80 × 125,963.70 - Step 4: Simplify right side
139,417.38x = 26,196,015,677.76 - Step 5: Solve for x
x = 26,196,015,677.76/139,417.38 - Step 6: Final answer
x = 187,896.34
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.