Finding the Fourth Proportional to 143,050.68, 197,406.18 and 79,386.84
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Solution
The fourth proportional to 143,050.68, 197,406.18 and 79,386.84 is: 109,551.75
Step by Step Solution
- Step 1: Write the proportion equation
143,050.68 : 197,406.18 = 79,386.84 : x - Step 2: Convert to fraction form
143,050.68/197,406.18 = 79,386.84/x - Step 3: Cross multiply
143,050.68x = 197,406.18 × 79,386.84 - Step 4: Simplify right side
143,050.68x = 15,671,452,826.67 - Step 5: Solve for x
x = 15,671,452,826.67/143,050.68 - Step 6: Final answer
x = 109,551.75
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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.