Finding the Fourth Proportional to 99,903.06, 149,125.83 and 87,291.59
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Solution
The fourth proportional to 99,903.06, 149,125.83 and 87,291.59 is: 130,300.62
Step by Step Solution
- Step 1: Write the proportion equation
99,903.06 : 149,125.83 = 87,291.59 : x - Step 2: Convert to fraction form
99,903.06/149,125.83 = 87,291.59/x - Step 3: Cross multiply
99,903.06x = 149,125.83 × 87,291.59 - Step 4: Simplify right side
99,903.06x = 13,017,430,747.13 - Step 5: Solve for x
x = 13,017,430,747.13/99,903.06 - Step 6: Final answer
x = 130,300.62
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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.