Finding the Fourth Proportional to 124,281.25, 171,384.99 and 76,525.30
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Solution
The fourth proportional to 124,281.25, 171,384.99 and 76,525.30 is: 105,529.09
Step by Step Solution
- Step 1: Write the proportion equation
124,281.25 : 171,384.99 = 76,525.30 : x - Step 2: Convert to fraction form
124,281.25/171,384.99 = 76,525.30/x - Step 3: Cross multiply
124,281.25x = 171,384.99 × 76,525.30 - Step 4: Simplify right side
124,281.25x = 13,115,287,775.25 - Step 5: Solve for x
x = 13,115,287,775.25/124,281.25 - Step 6: Final answer
x = 105,529.09
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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.