Finding the Fourth Proportional to 148,055.10, 221,754.60 and 121,811.10
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Solution
The fourth proportional to 148,055.10, 221,754.60 and 121,811.10 is: 182,446.75
Step by Step Solution
- Step 1: Write the proportion equation
148,055.10 : 221,754.60 = 121,811.10 : x - Step 2: Convert to fraction form
148,055.10/221,754.60 = 121,811.10/x - Step 3: Cross multiply
148,055.10x = 221,754.60 × 121,811.10 - Step 4: Simplify right side
148,055.10x = 27,012,171,756.06 - Step 5: Solve for x
x = 27,012,171,756.06/148,055.10 - Step 6: Final answer
x = 182,446.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.