Finding the Fourth Proportional to 180,711.05, 249,386.69 and 100,130.99
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Solution
The fourth proportional to 180,711.05, 249,386.69 and 100,130.99 is: 138,183.78
Step by Step Solution
- Step 1: Write the proportion equation
180,711.05 : 249,386.69 = 100,130.99 : x - Step 2: Convert to fraction form
180,711.05/249,386.69 = 100,130.99/x - Step 3: Cross multiply
180,711.05x = 249,386.69 × 100,130.99 - Step 4: Simplify right side
180,711.05x = 24,971,335,165.92 - Step 5: Solve for x
x = 24,971,335,165.92/180,711.05 - Step 6: Final answer
x = 138,183.78
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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.