Finding the Fourth Proportional to 155,202.59, 214,185.21 and 87,220.91
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Solution
The fourth proportional to 155,202.59, 214,185.21 and 87,220.91 is: 120,368.02
Step by Step Solution
- Step 1: Write the proportion equation
155,202.59 : 214,185.21 = 87,220.91 : x - Step 2: Convert to fraction form
155,202.59/214,185.21 = 87,220.91/x - Step 3: Cross multiply
155,202.59x = 214,185.21 × 87,220.91 - Step 4: Simplify right side
155,202.59x = 18,681,427,417.71 - Step 5: Solve for x
x = 18,681,427,417.71/155,202.59 - Step 6: Final answer
x = 120,368.02
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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.