Finding the Fourth Proportional to 124,989.63, 187,503.99 and 40,730.23
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Solution
The fourth proportional to 124,989.63, 187,503.99 and 40,730.23 is: 61,101.71
Step by Step Solution
- Step 1: Write the proportion equation
124,989.63 : 187,503.99 = 40,730.23 : x - Step 2: Convert to fraction form
124,989.63/187,503.99 = 40,730.23/x - Step 3: Cross multiply
124,989.63x = 187,503.99 × 40,730.23 - Step 4: Simplify right side
124,989.63x = 7,637,080,638.62 - Step 5: Solve for x
x = 7,637,080,638.62/124,989.63 - Step 6: Final answer
x = 61,101.71
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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.