Finding the Fourth Proportional to 134,778.68, 185,994.05 and 74,353.08
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Solution
The fourth proportional to 134,778.68, 185,994.05 and 74,353.08 is: 102,606.96
Step by Step Solution
- Step 1: Write the proportion equation
134,778.68 : 185,994.05 = 74,353.08 : x - Step 2: Convert to fraction form
134,778.68/185,994.05 = 74,353.08/x - Step 3: Cross multiply
134,778.68x = 185,994.05 × 74,353.08 - Step 4: Simplify right side
134,778.68x = 13,829,230,479.17 - Step 5: Solve for x
x = 13,829,230,479.17/134,778.68 - Step 6: Final answer
x = 102,606.96
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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.