Finding the Fourth Proportional to 130,336.12, 179,822.03 and 72,966.99
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Solution
The fourth proportional to 130,336.12, 179,822.03 and 72,966.99 is: 100,671.04
Step by Step Solution
- Step 1: Write the proportion equation
130,336.12 : 179,822.03 = 72,966.99 : x - Step 2: Convert to fraction form
130,336.12/179,822.03 = 72,966.99/x - Step 3: Cross multiply
130,336.12x = 179,822.03 × 72,966.99 - Step 4: Simplify right side
130,336.12x = 13,121,072,574.29 - Step 5: Solve for x
x = 13,121,072,574.29/130,336.12 - Step 6: Final answer
x = 100,671.04
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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.