Finding the Fourth Proportional to 124,774.84, 172,206.84 and 79,438.34
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Solution
The fourth proportional to 124,774.84, 172,206.84 and 79,438.34 is: 109,636.09
Step by Step Solution
- Step 1: Write the proportion equation
124,774.84 : 172,206.84 = 79,438.34 : x - Step 2: Convert to fraction form
124,774.84/172,206.84 = 79,438.34/x - Step 3: Cross multiply
124,774.84x = 172,206.84 × 79,438.34 - Step 4: Simplify right side
124,774.84x = 13,679,825,506.25 - Step 5: Solve for x
x = 13,679,825,506.25/124,774.84 - Step 6: Final answer
x = 109,636.09
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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.