Finding the Fourth Proportional to 130,476.24, 180,054.15 and 76,764.71
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Solution
The fourth proportional to 130,476.24, 180,054.15 and 76,764.71 is: 105,933.50
Step by Step Solution
- Step 1: Write the proportion equation
130,476.24 : 180,054.15 = 76,764.71 : x - Step 2: Convert to fraction form
130,476.24/180,054.15 = 76,764.71/x - Step 3: Cross multiply
130,476.24x = 180,054.15 × 76,764.71 - Step 4: Simplify right side
130,476.24x = 13,821,804,609.05 - Step 5: Solve for x
x = 13,821,804,609.05/130,476.24 - Step 6: Final answer
x = 105,933.50
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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.