Finding the Fourth Proportional to 103,260.69, 142,497.36 and 57,937.68
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Solution
The fourth proportional to 103,260.69, 142,497.36 and 57,937.68 is: 79,952.66
Step by Step Solution
- Step 1: Write the proportion equation
103,260.69 : 142,497.36 = 57,937.68 : x - Step 2: Convert to fraction form
103,260.69/142,497.36 = 57,937.68/x - Step 3: Cross multiply
103,260.69x = 142,497.36 × 57,937.68 - Step 4: Simplify right side
103,260.69x = 8,255,966,444.52 - Step 5: Solve for x
x = 8,255,966,444.52/103,260.69 - Step 6: Final answer
x = 79,952.66
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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.