Finding the Fourth Proportional to 97,275.50, 144,946.25 and 86,663.99
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Solution
The fourth proportional to 97,275.50, 144,946.25 and 86,663.99 is: 129,134.47
Step by Step Solution
- Step 1: Write the proportion equation
97,275.50 : 144,946.25 = 86,663.99 : x - Step 2: Convert to fraction form
97,275.50/144,946.25 = 86,663.99/x - Step 3: Cross multiply
97,275.50x = 144,946.25 × 86,663.99 - Step 4: Simplify right side
97,275.50x = 12,561,619,635.81 - Step 5: Solve for x
x = 12,561,619,635.81/97,275.50 - Step 6: Final answer
x = 129,134.47
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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.