Finding the Fourth Proportional to 155,979.68, 234,014.88 and 56,138.08
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Solution
The fourth proportional to 155,979.68, 234,014.88 and 56,138.08 is: 84,223.45
Step by Step Solution
- Step 1: Write the proportion equation
155,979.68 : 234,014.88 = 56,138.08 : x - Step 2: Convert to fraction form
155,979.68/234,014.88 = 56,138.08/x - Step 3: Cross multiply
155,979.68x = 234,014.88 × 56,138.08 - Step 4: Simplify right side
155,979.68x = 13,137,146,054.63 - Step 5: Solve for x
x = 13,137,146,054.63/155,979.68 - Step 6: Final answer
x = 84,223.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.