Finding the Fourth Proportional to 170,389.36, 235,138.28 and 98,811.88
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Solution
The fourth proportional to 170,389.36, 235,138.28 and 98,811.88 is: 136,360.95
Step by Step Solution
- Step 1: Write the proportion equation
170,389.36 : 235,138.28 = 98,811.88 : x - Step 2: Convert to fraction form
170,389.36/235,138.28 = 98,811.88/x - Step 3: Cross multiply
170,389.36x = 235,138.28 × 98,811.88 - Step 4: Simplify right side
170,389.36x = 23,234,455,506.77 - Step 5: Solve for x
x = 23,234,455,506.77/170,389.36 - Step 6: Final answer
x = 136,360.95
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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.