Finding the Fourth Proportional to 134,970.97, 186,261.35 and 74,543.15
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Solution
The fourth proportional to 134,970.97, 186,261.35 and 74,543.15 is: 102,870.33
Step by Step Solution
- Step 1: Write the proportion equation
134,970.97 : 186,261.35 = 74,543.15 : x - Step 2: Convert to fraction form
134,970.97/186,261.35 = 74,543.15/x - Step 3: Cross multiply
134,970.97x = 186,261.35 × 74,543.15 - Step 4: Simplify right side
134,970.97x = 13,884,507,752.25 - Step 5: Solve for x
x = 13,884,507,752.25/134,970.97 - Step 6: Final answer
x = 102,870.33
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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.