Finding the Fourth Proportional to 130,044.42, 179,437.68 and 76,331.70
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Solution
The fourth proportional to 130,044.42, 179,437.68 and 76,331.70 is: 105,323.88
Step by Step Solution
- Step 1: Write the proportion equation
130,044.42 : 179,437.68 = 76,331.70 : x - Step 2: Convert to fraction form
130,044.42/179,437.68 = 76,331.70/x - Step 3: Cross multiply
130,044.42x = 179,437.68 × 76,331.70 - Step 4: Simplify right side
130,044.42x = 13,696,783,158.46 - Step 5: Solve for x
x = 13,696,783,158.46/130,044.42 - Step 6: Final answer
x = 105,323.88
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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.