Finding the Fourth Proportional to 148,120.10, 221,041.14 and 132,373.70
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Solution
The fourth proportional to 148,120.10, 221,041.14 and 132,373.70 is: 197,542.63
Step by Step Solution
- Step 1: Write the proportion equation
148,120.10 : 221,041.14 = 132,373.70 : x - Step 2: Convert to fraction form
148,120.10/221,041.14 = 132,373.70/x - Step 3: Cross multiply
148,120.10x = 221,041.14 × 132,373.70 - Step 4: Simplify right side
148,120.10x = 29,260,032,448.81 - Step 5: Solve for x
x = 29,260,032,448.81/148,120.10 - Step 6: Final answer
x = 197,542.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.