Finding the Fourth Proportional to 137,112.24, 205,672.91 and 47,154.06
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Solution
The fourth proportional to 137,112.24, 205,672.91 and 47,154.06 is: 70,732.65
Step by Step Solution
- Step 1: Write the proportion equation
137,112.24 : 205,672.91 = 47,154.06 : x - Step 2: Convert to fraction form
137,112.24/205,672.91 = 47,154.06/x - Step 3: Cross multiply
137,112.24x = 205,672.91 × 47,154.06 - Step 4: Simplify right side
137,112.24x = 9,698,312,502.74 - Step 5: Solve for x
x = 9,698,312,502.74/137,112.24 - Step 6: Final answer
x = 70,732.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.