Finding the Fourth Proportional to 148,616.40, 205,090.62 and 84,955.62
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Solution
The fourth proportional to 148,616.40, 205,090.62 and 84,955.62 is: 117,238.75
Step by Step Solution
- Step 1: Write the proportion equation
148,616.40 : 205,090.62 = 84,955.62 : x - Step 2: Convert to fraction form
148,616.40/205,090.62 = 84,955.62/x - Step 3: Cross multiply
148,616.40x = 205,090.62 × 84,955.62 - Step 4: Simplify right side
148,616.40x = 17,423,600,778.28 - Step 5: Solve for x
x = 17,423,600,778.28/148,616.40 - Step 6: Final answer
x = 117,238.75
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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.