Finding the Fourth Proportional to 155,507.59, 214,607.36 and 87,528.95
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Solution
The fourth proportional to 155,507.59, 214,607.36 and 87,528.95 is: 120,793.82
Step by Step Solution
- Step 1: Write the proportion equation
155,507.59 : 214,607.36 = 87,528.95 : x - Step 2: Convert to fraction form
155,507.59/214,607.36 = 87,528.95/x - Step 3: Cross multiply
155,507.59x = 214,607.36 × 87,528.95 - Step 4: Simplify right side
155,507.59x = 18,784,356,445.43 - Step 5: Solve for x
x = 18,784,356,445.43/155,507.59 - Step 6: Final answer
x = 120,793.82
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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.