Finding the Fourth Proportional to 112,603.13, 155,397.18 and 62,302.13
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Solution
The fourth proportional to 112,603.13, 155,397.18 and 62,302.13 is: 85,979.63
Step by Step Solution
- Step 1: Write the proportion equation
112,603.13 : 155,397.18 = 62,302.13 : x - Step 2: Convert to fraction form
112,603.13/155,397.18 = 62,302.13/x - Step 3: Cross multiply
112,603.13x = 155,397.18 × 62,302.13 - Step 4: Simplify right side
112,603.13x = 9,681,575,309.99 - Step 5: Solve for x
x = 9,681,575,309.99/112,603.13 - Step 6: Final answer
x = 85,979.63
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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.