Finding the Fourth Proportional to 124,104.78, 171,263.84 and 67,515.75
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Solution
The fourth proportional to 124,104.78, 171,263.84 and 67,515.75 is: 93,171.32
Step by Step Solution
- Step 1: Write the proportion equation
124,104.78 : 171,263.84 = 67,515.75 : x - Step 2: Convert to fraction form
124,104.78/171,263.84 = 67,515.75/x - Step 3: Cross multiply
124,104.78x = 171,263.84 × 67,515.75 - Step 4: Simplify right side
124,104.78x = 11,563,006,267.90 - Step 5: Solve for x
x = 11,563,006,267.90/124,104.78 - Step 6: Final answer
x = 93,171.32
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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.