Finding the Fourth Proportional to 118,781.35, 163,856.11 and 73,444.84
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Solution
The fourth proportional to 118,781.35, 163,856.11 and 73,444.84 is: 101,315.45
Step by Step Solution
- Step 1: Write the proportion equation
118,781.35 : 163,856.11 = 73,444.84 : x - Step 2: Convert to fraction form
118,781.35/163,856.11 = 73,444.84/x - Step 3: Cross multiply
118,781.35x = 163,856.11 × 73,444.84 - Step 4: Simplify right side
118,781.35x = 12,034,385,781.97 - Step 5: Solve for x
x = 12,034,385,781.97/118,781.35 - Step 6: Final answer
x = 101,315.45
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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.