Finding the Fourth Proportional to 104,590.19, 156,868.77 and 86,934.26
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Solution
The fourth proportional to 104,590.19, 156,868.77 and 86,934.26 is: 130,387.66
Step by Step Solution
- Step 1: Write the proportion equation
104,590.19 : 156,868.77 = 86,934.26 : x - Step 2: Convert to fraction form
104,590.19/156,868.77 = 86,934.26/x - Step 3: Cross multiply
104,590.19x = 156,868.77 × 86,934.26 - Step 4: Simplify right side
104,590.19x = 13,637,270,437.06 - Step 5: Solve for x
x = 13,637,270,437.06/104,590.19 - Step 6: Final answer
x = 130,387.66
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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.