Finding the Fourth Proportional to 98,908.06, 147,642.61 and 91,598.62
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Solution
The fourth proportional to 98,908.06, 147,642.61 and 91,598.62 is: 136,731.62
Step by Step Solution
- Step 1: Write the proportion equation
98,908.06 : 147,642.61 = 91,598.62 : x - Step 2: Convert to fraction form
98,908.06/147,642.61 = 91,598.62/x - Step 3: Cross multiply
98,908.06x = 147,642.61 × 91,598.62 - Step 4: Simplify right side
98,908.06x = 13,523,859,329.20 - Step 5: Solve for x
x = 13,523,859,329.20/98,908.06 - Step 6: Final answer
x = 136,731.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.