Finding the Fourth Proportional to 130,543.74, 180,159.27 and 73,955.58
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Solution
The fourth proportional to 130,543.74, 180,159.27 and 73,955.58 is: 102,063.75
Step by Step Solution
- Step 1: Write the proportion equation
130,543.74 : 180,159.27 = 73,955.58 : x - Step 2: Convert to fraction form
130,543.74/180,159.27 = 73,955.58/x - Step 3: Cross multiply
130,543.74x = 180,159.27 × 73,955.58 - Step 4: Simplify right side
130,543.74x = 13,323,783,305.23 - Step 5: Solve for x
x = 13,323,783,305.23/130,543.74 - Step 6: Final answer
x = 102,063.75
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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.