Finding the Fourth Proportional to 139,973.60, 209,898.84 and 51,204.08
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Solution
The fourth proportional to 139,973.60, 209,898.84 and 51,204.08 is: 76,783.60
Step by Step Solution
- Step 1: Write the proportion equation
139,973.60 : 209,898.84 = 51,204.08 : x - Step 2: Convert to fraction form
139,973.60/209,898.84 = 51,204.08/x - Step 3: Cross multiply
139,973.60x = 209,898.84 × 51,204.08 - Step 4: Simplify right side
139,973.60x = 10,747,676,995.27 - Step 5: Solve for x
x = 10,747,676,995.27/139,973.60 - Step 6: Final answer
x = 76,783.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.