Finding the Fourth Proportional to 153,112.64, 211,354.54 and 102,106.94
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Solution
The fourth proportional to 153,112.64, 211,354.54 and 102,106.94 is: 140,946.99
Step by Step Solution
- Step 1: Write the proportion equation
153,112.64 : 211,354.54 = 102,106.94 : x - Step 2: Convert to fraction form
153,112.64/211,354.54 = 102,106.94/x - Step 3: Cross multiply
153,112.64x = 211,354.54 × 102,106.94 - Step 4: Simplify right side
153,112.64x = 21,580,765,334.51 - Step 5: Solve for x
x = 21,580,765,334.51/153,112.64 - Step 6: Final answer
x = 140,946.99
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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.