Finding the Fourth Proportional to 166,739.08, 249,929.40 and 72,014.02
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Solution
The fourth proportional to 166,739.08, 249,929.40 and 72,014.02 is: 107,943.63
Step by Step Solution
- Step 1: Write the proportion equation
166,739.08 : 249,929.40 = 72,014.02 : x - Step 2: Convert to fraction form
166,739.08/249,929.40 = 72,014.02/x - Step 3: Cross multiply
166,739.08x = 249,929.40 × 72,014.02 - Step 4: Simplify right side
166,739.08x = 17,998,420,810.19 - Step 5: Solve for x
x = 17,998,420,810.19/166,739.08 - Step 6: Final answer
x = 107,943.63
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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.