Finding the Fourth Proportional to 112,962.63, 155,888.51 and 62,661.63
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Solution
The fourth proportional to 112,962.63, 155,888.51 and 62,661.63 is: 86,473.09
Step by Step Solution
- Step 1: Write the proportion equation
112,962.63 : 155,888.51 = 62,661.63 : x - Step 2: Convert to fraction form
112,962.63/155,888.51 = 62,661.63/x - Step 3: Cross multiply
112,962.63x = 155,888.51 × 62,661.63 - Step 4: Simplify right side
112,962.63x = 9,768,228,134.87 - Step 5: Solve for x
x = 9,768,228,134.87/112,962.63 - Step 6: Final answer
x = 86,473.09
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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.