Finding the Fourth Proportional to 143,389.68, 197,926.98 and 86,801.07
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Solution
The fourth proportional to 143,389.68, 197,926.98 and 86,801.07 is: 119,815.27
Step by Step Solution
- Step 1: Write the proportion equation
143,389.68 : 197,926.98 = 86,801.07 : x - Step 2: Convert to fraction form
143,389.68/197,926.98 = 86,801.07/x - Step 3: Cross multiply
143,389.68x = 197,926.98 × 86,801.07 - Step 4: Simplify right side
143,389.68x = 17,180,273,645.87 - Step 5: Solve for x
x = 17,180,273,645.87/143,389.68 - Step 6: Final answer
x = 119,815.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.