Finding the Fourth Proportional to 143,130.38, 214,368.56 and 68,303.07
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Solution
The fourth proportional to 143,130.38, 214,368.56 and 68,303.07 is: 102,298.55
Step by Step Solution
- Step 1: Write the proportion equation
143,130.38 : 214,368.56 = 68,303.07 : x - Step 2: Convert to fraction form
143,130.38/214,368.56 = 68,303.07/x - Step 3: Cross multiply
143,130.38x = 214,368.56 × 68,303.07 - Step 4: Simplify right side
143,130.38x = 14,642,030,759.48 - Step 5: Solve for x
x = 14,642,030,759.48/143,130.38 - Step 6: Final answer
x = 102,298.55
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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.