Finding the Fourth Proportional to 103,188.48, 142,430.50 and 67,384.08
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Solution
The fourth proportional to 103,188.48, 142,430.50 and 67,384.08 is: 93,009.88
Step by Step Solution
- Step 1: Write the proportion equation
103,188.48 : 142,430.50 = 67,384.08 : x - Step 2: Convert to fraction form
103,188.48/142,430.50 = 67,384.08/x - Step 3: Cross multiply
103,188.48x = 142,430.50 × 67,384.08 - Step 4: Simplify right side
103,188.48x = 9,597,548,206.44 - Step 5: Solve for x
x = 9,597,548,206.44/103,188.48 - Step 6: Final answer
x = 93,009.88
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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.