Finding the Fourth Proportional to 145,050.88, 217,641.58 and 78,412.99
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Solution
The fourth proportional to 145,050.88, 217,641.58 and 78,412.99 is: 117,654.76
Step by Step Solution
- Step 1: Write the proportion equation
145,050.88 : 217,641.58 = 78,412.99 : x - Step 2: Convert to fraction form
145,050.88/217,641.58 = 78,412.99/x - Step 3: Cross multiply
145,050.88x = 217,641.58 × 78,412.99 - Step 4: Simplify right side
145,050.88x = 17,065,926,533.02 - Step 5: Solve for x
x = 17,065,926,533.02/145,050.88 - Step 6: Final answer
x = 117,654.76
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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.