Finding the Fourth Proportional to 124,656.18, 186,686.25 and 71,905.74
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Solution
The fourth proportional to 124,656.18, 186,686.25 and 71,905.74 is: 107,686.70
Step by Step Solution
- Step 1: Write the proportion equation
124,656.18 : 186,686.25 = 71,905.74 : x - Step 2: Convert to fraction form
124,656.18/186,686.25 = 71,905.74/x - Step 3: Cross multiply
124,656.18x = 186,686.25 × 71,905.74 - Step 4: Simplify right side
124,656.18x = 13,423,812,954.08 - Step 5: Solve for x
x = 13,423,812,954.08/124,656.18 - Step 6: Final answer
x = 107,686.70
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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.