Finding the Fourth Proportional to 158,865.30, 219,235.63 and 87,246.81
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Solution
The fourth proportional to 158,865.30, 219,235.63 and 87,246.81 is: 120,401.43
Step by Step Solution
- Step 1: Write the proportion equation
158,865.30 : 219,235.63 = 87,246.81 : x - Step 2: Convert to fraction form
158,865.30/219,235.63 = 87,246.81/x - Step 3: Cross multiply
158,865.30x = 219,235.63 × 87,246.81 - Step 4: Simplify right side
158,865.30x = 19,127,610,122.05 - Step 5: Solve for x
x = 19,127,610,122.05/158,865.30 - Step 6: Final answer
x = 120,401.43
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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.