Finding the Fourth Proportional to 147,408.80, 203,424.18 and 83,746.70
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Solution
The fourth proportional to 147,408.80, 203,424.18 and 83,746.70 is: 115,570.47
Step by Step Solution
- Step 1: Write the proportion equation
147,408.80 : 203,424.18 = 83,746.70 : x - Step 2: Convert to fraction form
147,408.80/203,424.18 = 83,746.70/x - Step 3: Cross multiply
147,408.80x = 203,424.18 × 83,746.70 - Step 4: Simplify right side
147,408.80x = 17,036,103,775.21 - Step 5: Solve for x
x = 17,036,103,775.21/147,408.80 - Step 6: Final answer
x = 115,570.47
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1.5x scale
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.