Finding the Fourth Proportional to 127,259.70, 190,967.55 and 52,415.70
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Solution
The fourth proportional to 127,259.70, 190,967.55 and 52,415.70 is: 78,655.68
Step by Step Solution
- Step 1: Write the proportion equation
127,259.70 : 190,967.55 = 52,415.70 : x - Step 2: Convert to fraction form
127,259.70/190,967.55 = 52,415.70/x - Step 3: Cross multiply
127,259.70x = 190,967.55 × 52,415.70 - Step 4: Simplify right side
127,259.70x = 10,009,697,810.54 - Step 5: Solve for x
x = 10,009,697,810.54/127,259.70 - Step 6: Final answer
x = 78,655.68
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1.5x scale
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.