Finding the Fourth Proportional to 101,262.99, 139,742.34 and 55,944.09
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Solution
The fourth proportional to 101,262.99, 139,742.34 and 55,944.09 is: 77,202.52
Step by Step Solution
- Step 1: Write the proportion equation
101,262.99 : 139,742.34 = 55,944.09 : x - Step 2: Convert to fraction form
101,262.99/139,742.34 = 55,944.09/x - Step 3: Cross multiply
101,262.99x = 139,742.34 × 55,944.09 - Step 4: Simplify right side
101,262.99x = 7,817,758,045.77 - Step 5: Solve for x
x = 7,817,758,045.77/101,262.99 - Step 6: Final answer
x = 77,202.52
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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.