Finding the Fourth Proportional to 163,013.13, 224,698.29 and 128,501.62
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Solution
The fourth proportional to 163,013.13, 224,698.29 and 128,501.62 is: 177,127.41
Step by Step Solution
- Step 1: Write the proportion equation
163,013.13 : 224,698.29 = 128,501.62 : x - Step 2: Convert to fraction form
163,013.13/224,698.29 = 128,501.62/x - Step 3: Cross multiply
163,013.13x = 224,698.29 × 128,501.62 - Step 4: Simplify right side
163,013.13x = 28,874,094,276.23 - Step 5: Solve for x
x = 28,874,094,276.23/163,013.13 - Step 6: Final answer
x = 177,127.41
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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.