Finding the Fourth Proportional to 101,623.41, 140,240.16 and 56,305.53
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Solution
The fourth proportional to 101,623.41, 140,240.16 and 56,305.53 is: 77,701.55
Step by Step Solution
- Step 1: Write the proportion equation
101,623.41 : 140,240.16 = 56,305.53 : x - Step 2: Convert to fraction form
101,623.41/140,240.16 = 56,305.53/x - Step 3: Cross multiply
101,623.41x = 140,240.16 × 56,305.53 - Step 4: Simplify right side
101,623.41x = 7,896,296,536.08 - Step 5: Solve for x
x = 7,896,296,536.08/101,623.41 - Step 6: Final answer
x = 77,701.55
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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.