Finding the Fourth Proportional to 101,805.59, 140,486.95 and 56,483.09
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Solution
The fourth proportional to 101,805.59, 140,486.95 and 56,483.09 is: 77,944.02
Step by Step Solution
- Step 1: Write the proportion equation
101,805.59 : 140,486.95 = 56,483.09 : x - Step 2: Convert to fraction form
101,805.59/140,486.95 = 56,483.09/x - Step 3: Cross multiply
101,805.59x = 140,486.95 × 56,483.09 - Step 4: Simplify right side
101,805.59x = 7,935,136,197.03 - Step 5: Solve for x
x = 7,935,136,197.03/101,805.59 - Step 6: Final answer
x = 77,944.02
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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.