Finding the Fourth Proportional to 135,159.64, 186,512.76 and 74,726.75
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Solution
The fourth proportional to 135,159.64, 186,512.76 and 74,726.75 is: 103,118.74
Step by Step Solution
- Step 1: Write the proportion equation
135,159.64 : 186,512.76 = 74,726.75 : x - Step 2: Convert to fraction form
135,159.64/186,512.76 = 74,726.75/x - Step 3: Cross multiply
135,159.64x = 186,512.76 × 74,726.75 - Step 4: Simplify right side
135,159.64x = 13,937,492,388.33 - Step 5: Solve for x
x = 13,937,492,388.33/135,159.64 - Step 6: Final answer
x = 103,118.74
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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.