Finding the Fourth Proportional to 149,031.99, 205,560.05 and 101,202.30
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Solution
The fourth proportional to 149,031.99, 205,560.05 and 101,202.30 is: 139,588.48
Step by Step Solution
- Step 1: Write the proportion equation
149,031.99 : 205,560.05 = 101,202.30 : x - Step 2: Convert to fraction form
149,031.99/205,560.05 = 101,202.30/x - Step 3: Cross multiply
149,031.99x = 205,560.05 × 101,202.30 - Step 4: Simplify right side
149,031.99x = 20,803,149,342.10 - Step 5: Solve for x
x = 20,803,149,342.10/149,031.99 - Step 6: Final answer
x = 139,588.48
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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.