Finding the Fourth Proportional to 140,515.08, 210,772.98 and 57,409.08
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Solution
The fourth proportional to 140,515.08, 210,772.98 and 57,409.08 is: 86,113.77
Step by Step Solution
- Step 1: Write the proportion equation
140,515.08 : 210,772.98 = 57,409.08 : x - Step 2: Convert to fraction form
140,515.08/210,772.98 = 57,409.08/x - Step 3: Cross multiply
140,515.08x = 210,772.98 × 57,409.08 - Step 4: Simplify right side
140,515.08x = 12,100,282,870.66 - Step 5: Solve for x
x = 12,100,282,870.66/140,515.08 - Step 6: Final answer
x = 86,113.77
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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.