Finding the Fourth Proportional to 153,090.36, 211,367.79 and 136,907.46
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Solution
The fourth proportional to 153,090.36, 211,367.79 and 136,907.46 is: 189,024.49
Step by Step Solution
- Step 1: Write the proportion equation
153,090.36 : 211,367.79 = 136,907.46 : x - Step 2: Convert to fraction form
153,090.36/211,367.79 = 136,907.46/x - Step 3: Cross multiply
153,090.36x = 211,367.79 × 136,907.46 - Step 4: Simplify right side
153,090.36x = 28,937,827,254.71 - Step 5: Solve for x
x = 28,937,827,254.71/153,090.36 - Step 6: Final answer
x = 189,024.49
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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.