Finding the Fourth Proportional to 104,187.11, 143,778.07 and 56,440.65
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Solution
The fourth proportional to 104,187.11, 143,778.07 and 56,440.65 is: 77,888.02
Step by Step Solution
- Step 1: Write the proportion equation
104,187.11 : 143,778.07 = 56,440.65 : x - Step 2: Convert to fraction form
104,187.11/143,778.07 = 56,440.65/x - Step 3: Cross multiply
104,187.11x = 143,778.07 × 56,440.65 - Step 4: Simplify right side
104,187.11x = 8,114,927,726.55 - Step 5: Solve for x
x = 8,114,927,726.55/104,187.11 - Step 6: Final answer
x = 77,888.02
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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.