Finding the Fourth Proportional to 135,070.06, 186,395.97 and 74,644.90
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Solution
The fourth proportional to 135,070.06, 186,395.97 and 74,644.90 is: 103,009.57
Step by Step Solution
- Step 1: Write the proportion equation
135,070.06 : 186,395.97 = 74,644.90 : x - Step 2: Convert to fraction form
135,070.06/186,395.97 = 74,644.90/x - Step 3: Cross multiply
135,070.06x = 186,395.97 × 74,644.90 - Step 4: Simplify right side
135,070.06x = 13,913,508,541.05 - Step 5: Solve for x
x = 13,913,508,541.05/135,070.06 - Step 6: Final answer
x = 103,009.57
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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.