Finding the Fourth Proportional to 130,840.60, 180,549.76 and 74,251.96
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Solution
The fourth proportional to 130,840.60, 180,549.76 and 74,251.96 is: 102,461.88
Step by Step Solution
- Step 1: Write the proportion equation
130,840.60 : 180,549.76 = 74,251.96 : x - Step 2: Convert to fraction form
130,840.60/180,549.76 = 74,251.96/x - Step 3: Cross multiply
130,840.60x = 180,549.76 × 74,251.96 - Step 4: Simplify right side
130,840.60x = 13,406,173,557.53 - Step 5: Solve for x
x = 13,406,173,557.53/130,840.60 - Step 6: Final answer
x = 102,461.88
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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.