Finding the Fourth Proportional to 107,159.18, 147,876.99 and 59,412.38
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Solution
The fourth proportional to 107,159.18, 147,876.99 and 59,412.38 is: 81,987.60
Step by Step Solution
- Step 1: Write the proportion equation
107,159.18 : 147,876.99 = 59,412.38 : x - Step 2: Convert to fraction form
107,159.18/147,876.99 = 59,412.38/x - Step 3: Cross multiply
107,159.18x = 147,876.99 × 59,412.38 - Step 4: Simplify right side
107,159.18x = 8,785,723,923.14 - Step 5: Solve for x
x = 8,785,723,923.14/107,159.18 - Step 6: Final answer
x = 81,987.60
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1.5x scale
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.