Finding the Fourth Proportional to 118,426.65, 163,537.91 and 76,058.99
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Solution
The fourth proportional to 118,426.65, 163,537.91 and 76,058.99 is: 105,031.49
Step by Step Solution
- Step 1: Write the proportion equation
118,426.65 : 163,537.91 = 76,058.99 : x - Step 2: Convert to fraction form
118,426.65/163,537.91 = 76,058.99/x - Step 3: Cross multiply
118,426.65x = 163,537.91 × 76,058.99 - Step 4: Simplify right side
118,426.65x = 12,438,527,063.33 - Step 5: Solve for x
x = 12,438,527,063.33/118,426.65 - Step 6: Final answer
x = 105,031.49
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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.