Finding the Fourth Proportional to 130,724.84, 180,418.98 and 73,370.28
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Solution
The fourth proportional to 130,724.84, 180,418.98 and 73,370.28 is: 101,261.48
Step by Step Solution
- Step 1: Write the proportion equation
130,724.84 : 180,418.98 = 73,370.28 : x - Step 2: Convert to fraction form
130,724.84/180,418.98 = 73,370.28/x - Step 3: Cross multiply
130,724.84x = 180,418.98 × 73,370.28 - Step 4: Simplify right side
130,724.84x = 13,237,391,079.91 - Step 5: Solve for x
x = 13,237,391,079.91/130,724.84 - Step 6: Final answer
x = 101,261.48
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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.