Finding the Fourth Proportional to 97,798.55, 146,507.49 and 72,106.09
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Solution
The fourth proportional to 97,798.55, 146,507.49 and 72,106.09 is: 108,018.80
Step by Step Solution
- Step 1: Write the proportion equation
97,798.55 : 146,507.49 = 72,106.09 : x - Step 2: Convert to fraction form
97,798.55/146,507.49 = 72,106.09/x - Step 3: Cross multiply
97,798.55x = 146,507.49 × 72,106.09 - Step 4: Simplify right side
97,798.55x = 10,564,081,969.80 - Step 5: Solve for x
x = 10,564,081,969.80/97,798.55 - Step 6: Final answer
x = 108,018.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.