Finding the Fourth Proportional to 148,218.81, 204,490.85 and 83,679.99
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Solution
The fourth proportional to 148,218.81, 204,490.85 and 83,679.99 is: 115,449.53
Step by Step Solution
- Step 1: Write the proportion equation
148,218.81 : 204,490.85 = 83,679.99 : x - Step 2: Convert to fraction form
148,218.81/204,490.85 = 83,679.99/x - Step 3: Cross multiply
148,218.81x = 204,490.85 × 83,679.99 - Step 4: Simplify right side
148,218.81x = 17,111,791,864.69 - Step 5: Solve for x
x = 17,111,791,864.69/148,218.81 - Step 6: Final answer
x = 115,449.53
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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.