Finding the Fourth Proportional to 124,762.63, 187,094.13 and 72,209.02
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Solution
The fourth proportional to 124,762.63, 187,094.13 and 72,209.02 is: 108,284.70
Step by Step Solution
- Step 1: Write the proportion equation
124,762.63 : 187,094.13 = 72,209.02 : x - Step 2: Convert to fraction form
124,762.63/187,094.13 = 72,209.02/x - Step 3: Cross multiply
124,762.63x = 187,094.13 × 72,209.02 - Step 4: Simplify right side
124,762.63x = 13,509,883,775.05 - Step 5: Solve for x
x = 13,509,883,775.05/124,762.63 - Step 6: Final answer
x = 108,284.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.