Finding the Fourth Proportional to 118,669.24, 163,763.61 and 64,954.53
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Solution
The fourth proportional to 118,669.24, 163,763.61 and 64,954.53 is: 89,637.28
Step by Step Solution
- Step 1: Write the proportion equation
118,669.24 : 163,763.61 = 64,954.53 : x - Step 2: Convert to fraction form
118,669.24/163,763.61 = 64,954.53/x - Step 3: Cross multiply
118,669.24x = 163,763.61 × 64,954.53 - Step 4: Simplify right side
118,669.24x = 10,637,187,993.88 - Step 5: Solve for x
x = 10,637,187,993.88/118,669.24 - Step 6: Final answer
x = 89,637.28
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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.