Finding the Fourth Proportional to 134,435.09, 185,513.79 and 74,011.02
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Solution
The fourth proportional to 134,435.09, 185,513.79 and 74,011.02 is: 102,131.55
Step by Step Solution
- Step 1: Write the proportion equation
134,435.09 : 185,513.79 = 74,011.02 : x - Step 2: Convert to fraction form
134,435.09/185,513.79 = 74,011.02/x - Step 3: Cross multiply
134,435.09x = 185,513.79 × 74,011.02 - Step 4: Simplify right side
134,435.09x = 13,730,064,403.83 - Step 5: Solve for x
x = 13,730,064,403.83/134,435.09 - Step 6: Final answer
x = 102,131.55
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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.