Finding the Fourth Proportional to 148,378.19, 204,832.85 and 84,703.68
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Solution
The fourth proportional to 148,378.19, 204,832.85 and 84,703.68 is: 116,931.58
Step by Step Solution
- Step 1: Write the proportion equation
148,378.19 : 204,832.85 = 84,703.68 : x - Step 2: Convert to fraction form
148,378.19/204,832.85 = 84,703.68/x - Step 3: Cross multiply
148,378.19x = 204,832.85 × 84,703.68 - Step 4: Simplify right side
148,378.19x = 17,350,095,756.37 - Step 5: Solve for x
x = 17,350,095,756.37/148,378.19 - Step 6: Final answer
x = 116,931.58
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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.