Finding the Fourth Proportional to 155,032.78, 213,798.26 and 101,363.80
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Solution
The fourth proportional to 155,032.78, 213,798.26 and 101,363.80 is: 139,785.95
Step by Step Solution
- Step 1: Write the proportion equation
155,032.78 : 213,798.26 = 101,363.80 : x - Step 2: Convert to fraction form
155,032.78/213,798.26 = 101,363.80/x - Step 3: Cross multiply
155,032.78x = 213,798.26 × 101,363.80 - Step 4: Simplify right side
155,032.78x = 21,671,404,066.99 - Step 5: Solve for x
x = 21,671,404,066.99/155,032.78 - Step 6: Final answer
x = 139,785.95
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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.