Finding the Fourth Proportional to 128,044.47, 176,700.36 and 74,334.48
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Solution
The fourth proportional to 128,044.47, 176,700.36 and 74,334.48 is: 102,581.00
Step by Step Solution
- Step 1: Write the proportion equation
128,044.47 : 176,700.36 = 74,334.48 : x - Step 2: Convert to fraction form
128,044.47/176,700.36 = 74,334.48/x - Step 3: Cross multiply
128,044.47x = 176,700.36 × 74,334.48 - Step 4: Simplify right side
128,044.47x = 13,134,929,376.41 - Step 5: Solve for x
x = 13,134,929,376.41/128,044.47 - Step 6: Final answer
x = 102,581.00
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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.