Finding the Fourth Proportional to 127,856.08, 176,402.23 and 74,130.31
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Solution
The fourth proportional to 127,856.08, 176,402.23 and 74,130.31 is: 102,277.12
Step by Step Solution
- Step 1: Write the proportion equation
127,856.08 : 176,402.23 = 74,130.31 : x - Step 2: Convert to fraction form
127,856.08/176,402.23 = 74,130.31/x - Step 3: Cross multiply
127,856.08x = 176,402.23 × 74,130.31 - Step 4: Simplify right side
127,856.08x = 13,076,751,994.59 - Step 5: Solve for x
x = 13,076,751,994.59/127,856.08 - Step 6: Final answer
x = 102,277.12
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1.5x scale
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.