Finding the Fourth Proportional to 141,967.04, 212,950.68 and 79,681.28
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Solution
The fourth proportional to 141,967.04, 212,950.68 and 79,681.28 is: 119,521.99
Step by Step Solution
- Step 1: Write the proportion equation
141,967.04 : 212,950.68 = 79,681.28 : x - Step 2: Convert to fraction form
141,967.04/212,950.68 = 79,681.28/x - Step 3: Cross multiply
141,967.04x = 212,950.68 × 79,681.28 - Step 4: Simplify right side
141,967.04x = 16,968,182,759.27 - Step 5: Solve for x
x = 16,968,182,759.27/141,967.04 - Step 6: Final answer
x = 119,521.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.