Finding the Fourth Proportional to 159,769.72, 239,426.21 and 117,316.71
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Solution
The fourth proportional to 159,769.72, 239,426.21 and 117,316.71 is: 175,807.38
Step by Step Solution
- Step 1: Write the proportion equation
159,769.72 : 239,426.21 = 117,316.71 : x - Step 2: Convert to fraction form
159,769.72/239,426.21 = 117,316.71/x - Step 3: Cross multiply
159,769.72x = 239,426.21 × 117,316.71 - Step 4: Simplify right side
159,769.72x = 28,088,695,538.26 - Step 5: Solve for x
x = 28,088,695,538.26/159,769.72 - Step 6: Final answer
x = 175,807.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.