Finding the Fourth Proportional to 143,352.08, 197,830.95 and 78,826.23
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Solution
The fourth proportional to 143,352.08, 197,830.95 and 78,826.23 is: 108,782.99
Step by Step Solution
- Step 1: Write the proportion equation
143,352.08 : 197,830.95 = 78,826.23 : x - Step 2: Convert to fraction form
143,352.08/197,830.95 = 78,826.23/x - Step 3: Cross multiply
143,352.08x = 197,830.95 × 78,826.23 - Step 4: Simplify right side
143,352.08x = 15,594,267,965.82 - Step 5: Solve for x
x = 15,594,267,965.82/143,352.08 - Step 6: Final answer
x = 108,782.99
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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.