Finding the Fourth Proportional to 129,237.04, 178,343.84 and 72,652.08
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Solution
The fourth proportional to 129,237.04, 178,343.84 and 72,652.08 is: 100,258.03
Step by Step Solution
- Step 1: Write the proportion equation
129,237.04 : 178,343.84 = 72,652.08 : x - Step 2: Convert to fraction form
129,237.04/178,343.84 = 72,652.08/x - Step 3: Cross multiply
129,237.04x = 178,343.84 × 72,652.08 - Step 4: Simplify right side
129,237.04x = 12,957,050,931.19 - Step 5: Solve for x
x = 12,957,050,931.19/129,237.04 - Step 6: Final answer
x = 100,258.03
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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.