Finding the Fourth Proportional to 160,642.58, 221,688.04 and 89,023.79
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Solution
The fourth proportional to 160,642.58, 221,688.04 and 89,023.79 is: 122,853.53
Step by Step Solution
- Step 1: Write the proportion equation
160,642.58 : 221,688.04 = 89,023.79 : x - Step 2: Convert to fraction form
160,642.58/221,688.04 = 89,023.79/x - Step 3: Cross multiply
160,642.58x = 221,688.04 × 89,023.79 - Step 4: Simplify right side
160,642.58x = 19,735,508,187.47 - Step 5: Solve for x
x = 19,735,508,187.47/160,642.58 - Step 6: Final answer
x = 122,853.53
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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.