Finding the Fourth Proportional to 118,398.44, 163,389.25 and 64,686.53
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Solution
The fourth proportional to 118,398.44, 163,389.25 and 64,686.53 is: 89,267.09
Step by Step Solution
- Step 1: Write the proportion equation
118,398.44 : 163,389.25 = 64,686.53 : x - Step 2: Convert to fraction form
118,398.44/163,389.25 = 64,686.53/x - Step 3: Cross multiply
118,398.44x = 163,389.25 × 64,686.53 - Step 4: Simplify right side
118,398.44x = 10,569,084,111.13 - Step 5: Solve for x
x = 10,569,084,111.13/118,398.44 - Step 6: Final answer
x = 89,267.09
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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.