Finding the Fourth Proportional to 153,239.36, 211,350.48 and 99,541.67
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Solution
The fourth proportional to 153,239.36, 211,350.48 and 99,541.67 is: 137,289.66
Step by Step Solution
- Step 1: Write the proportion equation
153,239.36 : 211,350.48 = 99,541.67 : x - Step 2: Convert to fraction form
153,239.36/211,350.48 = 99,541.67/x - Step 3: Cross multiply
153,239.36x = 211,350.48 × 99,541.67 - Step 4: Simplify right side
153,239.36x = 21,038,178,677.75 - Step 5: Solve for x
x = 21,038,178,677.75/153,239.36 - Step 6: Final answer
x = 137,289.66
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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.