Finding the Fourth Proportional to 106,669.74, 147,208.52 and 61,347.71
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Solution
The fourth proportional to 106,669.74, 147,208.52 and 61,347.71 is: 84,662.31
Step by Step Solution
- Step 1: Write the proportion equation
106,669.74 : 147,208.52 = 61,347.71 : x - Step 2: Convert to fraction form
106,669.74/147,208.52 = 61,347.71/x - Step 3: Cross multiply
106,669.74x = 147,208.52 × 61,347.71 - Step 4: Simplify right side
106,669.74x = 9,030,906,115.88 - Step 5: Solve for x
x = 9,030,906,115.88/106,669.74 - Step 6: Final answer
x = 84,662.31
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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.