Finding the Fourth Proportional to 143,271.68, 197,710.98 and 79,607.84
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Solution
The fourth proportional to 143,271.68, 197,710.98 and 79,607.84 is: 109,856.63
Step by Step Solution
- Step 1: Write the proportion equation
143,271.68 : 197,710.98 = 79,607.84 : x - Step 2: Convert to fraction form
143,271.68/197,710.98 = 79,607.84/x - Step 3: Cross multiply
143,271.68x = 197,710.98 × 79,607.84 - Step 4: Simplify right side
143,271.68x = 15,739,344,062.08 - Step 5: Solve for x
x = 15,739,344,062.08/143,271.68 - Step 6: Final answer
x = 109,856.63
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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.