Finding the Fourth Proportional to 149,032.74, 205,561.08 and 101,203.05
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Solution
The fourth proportional to 149,032.74, 205,561.08 and 101,203.05 is: 139,589.52
Step by Step Solution
- Step 1: Write the proportion equation
149,032.74 : 205,561.08 = 101,203.05 : x - Step 2: Convert to fraction form
149,032.74/205,561.08 = 101,203.05/x - Step 3: Cross multiply
149,032.74x = 205,561.08 × 101,203.05 - Step 4: Simplify right side
149,032.74x = 20,803,408,257.29 - Step 5: Solve for x
x = 20,803,408,257.29/149,032.74 - Step 6: Final answer
x = 139,589.52
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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.