Finding the Fourth Proportional to 124,611.76, 171,961.40 and 68,024.08
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Solution
The fourth proportional to 124,611.76, 171,961.40 and 68,024.08 is: 93,871.69
Step by Step Solution
- Step 1: Write the proportion equation
124,611.76 : 171,961.40 = 68,024.08 : x - Step 2: Convert to fraction form
124,611.76/171,961.40 = 68,024.08/x - Step 3: Cross multiply
124,611.76x = 171,961.40 × 68,024.08 - Step 4: Simplify right side
124,611.76x = 11,697,516,030.51 - Step 5: Solve for x
x = 11,697,516,030.51/124,611.76 - Step 6: Final answer
x = 93,871.69
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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.