Finding the Fourth Proportional to 84,312.42, 125,528.93 and 83,134.95
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Solution
The fourth proportional to 84,312.42, 125,528.93 and 83,134.95 is: 123,775.84
Step by Step Solution
- Step 1: Write the proportion equation
84,312.42 : 125,528.93 = 83,134.95 : x - Step 2: Convert to fraction form
84,312.42/125,528.93 = 83,134.95/x - Step 3: Cross multiply
84,312.42x = 125,528.93 × 83,134.95 - Step 4: Simplify right side
84,312.42x = 10,435,840,903.43 - Step 5: Solve for x
x = 10,435,840,903.43/84,312.42 - Step 6: Final answer
x = 123,775.84
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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.