Finding the Fourth Proportional to 101,613.39, 140,227.48 and 56,291.99
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Solution
The fourth proportional to 101,613.39, 140,227.48 and 56,291.99 is: 77,683.50
Step by Step Solution
- Step 1: Write the proportion equation
101,613.39 : 140,227.48 = 56,291.99 : x - Step 2: Convert to fraction form
101,613.39/140,227.48 = 56,291.99/x - Step 3: Cross multiply
101,613.39x = 140,227.48 × 56,291.99 - Step 4: Simplify right side
101,613.39x = 7,893,683,507.18 - Step 5: Solve for x
x = 7,893,683,507.18/101,613.39 - Step 6: Final answer
x = 77,683.50
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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.