Finding the Fourth Proportional to 180,673.99, 249,332.11 and 100,102.78
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Solution
The fourth proportional to 180,673.99, 249,332.11 and 100,102.78 is: 138,142.95
Step by Step Solution
- Step 1: Write the proportion equation
180,673.99 : 249,332.11 = 100,102.78 : x - Step 2: Convert to fraction form
180,673.99/249,332.11 = 100,102.78/x - Step 3: Cross multiply
180,673.99x = 249,332.11 × 100,102.78 - Step 4: Simplify right side
180,673.99x = 24,958,837,415.67 - Step 5: Solve for x
x = 24,958,837,415.67/180,673.99 - Step 6: Final answer
x = 138,142.95
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1.5x scale
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.